fuel injector spray pattern - is 4-hole really better???
03-08-2018, 05:39 PM
#1
Seasoned Member
Thread Starter
Join Date: Dec 2016
Location: Lawrence ****ing Kansas
Posts: 391
Likes: 0
Received 6 Likes
on
6 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
fuel injector spray pattern - is 4-hole really better???
The traditional argument is that 4-hole injectors are better because they atomize the fuel with the air better. The images and videos on youtube are certainly proof that they do spray the fuel into a mist, unlike the 1-hole which sprays a very steady stream.
My (non-expert) theory is this: the steady streams coming out of the stock 1-hole injectors will hit the hot intake valve and instantly atomize and mix with the air inside the intake manifold.
When the engine is cold, however, this would be a moot point. Therefor, 4-hole injectors have the advantage when starting and driving a cold engine.
I swapped to 4-hole injectors a few weeks ago. I got really cheap ones from Ebay ($45 for all 6). I certainly noticed that the cold engine starts a lot faster, but I don't think that I'm getting better MPG or more torque but it's really hard to say. It's certainly not worse.
However, the #4 injector stopped working yesterday and I've had problems with the #2 injector too. I need to get back on the road ASAP and I'm wondering if I should just get one or two replacement fuel injectors from Oreilly's - they have 1-hole injectors for $40 in stock and Neon injectors starting at $60 and those need to be ordered.... I also have the old injectors but after a few weeks the coil can freeze up or so I've read online.
What do you think?
My (non-expert) theory is this: the steady streams coming out of the stock 1-hole injectors will hit the hot intake valve and instantly atomize and mix with the air inside the intake manifold.
When the engine is cold, however, this would be a moot point. Therefor, 4-hole injectors have the advantage when starting and driving a cold engine.
I swapped to 4-hole injectors a few weeks ago. I got really cheap ones from Ebay ($45 for all 6). I certainly noticed that the cold engine starts a lot faster, but I don't think that I'm getting better MPG or more torque but it's really hard to say. It's certainly not worse.
However, the #4 injector stopped working yesterday and I've had problems with the #2 injector too. I need to get back on the road ASAP and I'm wondering if I should just get one or two replacement fuel injectors from Oreilly's - they have 1-hole injectors for $40 in stock and Neon injectors starting at $60 and those need to be ordered.... I also have the old injectors but after a few weeks the coil can freeze up or so I've read online.
What do you think?
Last edited by mannydantyla; 03-09-2018 at 03:10 PM.
03-08-2018, 11:19 PM
#3
Senior Member
The traditional argument is that 4-hole injectors are better because they atomize the fuel with the air better. The images and videos on youtube are certainly proof that they do spray the fuel into a mist, unlike the 1-hole which sprays a very steady stream.
My (non-expert) theory is this: the steady streams coming out of the stock 1-hole injectors will hit the top of the hot pistons and instantly atomize and mix with the air.
When the engine is cold, however, this would be a mute point. Therefor, 4-hole injectors have the advantage when starting and driving a cold engine.
I swapped to 4-hole injectors a few weeks ago. I got really cheap ones from Ebay ($45 for all 6). I certainly noticed that the cold engine starts a lot faster, but I don't think that I'm getting better MPG or more torque but it's really hard to say. It's certainly not worse.
However, the #4 injector stopped working yesterday and I've had problems with the #2 injector too. I need to get back on the road ASAP and I'm wondering if I should just get one or two replacement fuel injectors from Oreilly's - they have 1-hole injectors for $40 in stock and Neon injectors starting at $60 and those need to be ordered.... I also have the old injectors but after a few weeks the coil can freeze up or so I've read online.
What do you think?
My (non-expert) theory is this: the steady streams coming out of the stock 1-hole injectors will hit the top of the hot pistons and instantly atomize and mix with the air.
When the engine is cold, however, this would be a mute point. Therefor, 4-hole injectors have the advantage when starting and driving a cold engine.
I swapped to 4-hole injectors a few weeks ago. I got really cheap ones from Ebay ($45 for all 6). I certainly noticed that the cold engine starts a lot faster, but I don't think that I'm getting better MPG or more torque but it's really hard to say. It's certainly not worse.
However, the #4 injector stopped working yesterday and I've had problems with the #2 injector too. I need to get back on the road ASAP and I'm wondering if I should just get one or two replacement fuel injectors from Oreilly's - they have 1-hole injectors for $40 in stock and Neon injectors starting at $60 and those need to be ordered.... I also have the old injectors but after a few weeks the coil can freeze up or so I've read online.
What do you think?
03-08-2018, 11:20 PM
#4
Senior Member
The traditional argument is that 4-hole injectors are better because they atomize the fuel with the air better. The images and videos on youtube are certainly proof that they do spray the fuel into a mist, unlike the 1-hole which sprays a very steady stream.
My (non-expert) theory is this: the steady streams coming out of the stock 1-hole injectors will hit the top of the hot pistons and instantly atomize and mix with the air.
When the engine is cold, however, this would be a mute point. Therefor, 4-hole injectors have the advantage when starting and driving a cold engine.
I swapped to 4-hole injectors a few weeks ago. I got really cheap ones from Ebay ($45 for all 6). I certainly noticed that the cold engine starts a lot faster, but I don't think that I'm getting better MPG or more torque but it's really hard to say. It's certainly not worse.
However, the #4 injector stopped working yesterday and I've had problems with the #2 injector too. I need to get back on the road ASAP and I'm wondering if I should just get one or two replacement fuel injectors from Oreilly's - they have 1-hole injectors for $40 in stock and Neon injectors starting at $60 and those need to be ordered.... I also have the old injectors but after a few weeks the coil can freeze up or so I've read online.
What do you think?
My (non-expert) theory is this: the steady streams coming out of the stock 1-hole injectors will hit the top of the hot pistons and instantly atomize and mix with the air.
When the engine is cold, however, this would be a mute point. Therefor, 4-hole injectors have the advantage when starting and driving a cold engine.
I swapped to 4-hole injectors a few weeks ago. I got really cheap ones from Ebay ($45 for all 6). I certainly noticed that the cold engine starts a lot faster, but I don't think that I'm getting better MPG or more torque but it's really hard to say. It's certainly not worse.
However, the #4 injector stopped working yesterday and I've had problems with the #2 injector too. I need to get back on the road ASAP and I'm wondering if I should just get one or two replacement fuel injectors from Oreilly's - they have 1-hole injectors for $40 in stock and Neon injectors starting at $60 and those need to be ordered.... I also have the old injectors but after a few weeks the coil can freeze up or so I've read online.
What do you think?
03-09-2018, 09:02 AM
#5
Seasoned Member
Thread Starter
Join Date: Dec 2016
Location: Lawrence ****ing Kansas
Posts: 391
Likes: 0
Received 6 Likes
on
6 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
True
What I really want is just reliability, and the old ones were fine. I should have just left well enough alone. If it's not broken don't fix it.
Maybe what I'll do is test and clean the old ones and put those back in this weekend. Maybe. I don't think 4-hole injectors are going to make a really big difference in a regular (normally aspirated, low compression ratio) engine.
What I really want is just reliability, and the old ones were fine. I should have just left well enough alone. If it's not broken don't fix it.
Maybe what I'll do is test and clean the old ones and put those back in this weekend. Maybe. I don't think 4-hole injectors are going to make a really big difference in a regular (normally aspirated, low compression ratio) engine.
Last edited by mannydantyla; 03-09-2018 at 09:10 AM.
03-09-2018, 09:32 AM
#6
CF Veteran
Join Date: Oct 2011
Location: SEMO
Posts: 1,394
Likes: 0
Received 7 Likes
on
7 Posts
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0 L6
A lot of money is spent on real studies to determine how to better atomize fuel from injectors to improve the efficiency of the combustion process. Here is one such study, for instance, that uses laser diffraction to measure particle size: https://www.laboratoryequipment.com/...ection-science
You may ask yourself, "if atomization from the fuel injectors isn't important, why is so much time and money spent trying to determine how to do it better?"
Or, you may not...
I'll put in another good word for jhc7399. There were noticeable improvements in drive-ability after I upgraded with his 784s. The majority of that improvement was likely because I was replacing older injectors with clean ones so they were atomizing better though, not necessarily just because they have 4 holes.
Last edited by Tbone289; 03-09-2018 at 09:37 AM.
03-09-2018, 09:42 AM
#7
Seasoned Member
Thread Starter
Join Date: Dec 2016
Location: Lawrence ****ing Kansas
Posts: 391
Likes: 0
Received 6 Likes
on
6 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
BTW, these are the cheapo ones I bought. https://www.ebay.com/itm/96-97-98-Je...53.m1438.l2649 They don't say exactly what vehicles they were originally made for, they're Bosch 4-holes with part numbers 0280155923 and 0280155784. They need a custom wiring adaptor which seems to work fine.
Last night I checked their resistance - all were 12 to 13.5 Ohms. Even the ones that were failing. I checked the wires going to them and they were good. I "listened" to them with the screwdriver stethoscope method and they all sounded different then each other..! Like, no constancy at all. After idling for a while, the 2nd and 4th injectors where both behaving a little better (if I disconnected them, the idle would get much worse where as when I first started the engine there was no difference, that's how I knew they were "working" somewhat) and the idle was only a little choppy. Or maybe the long-term fuel trim may have compensated enough to make it seem like its gotten better when they really haven't. Again, the resistance ranged from 12 to 13.5 volts for all, including the bad ones, checked while the engine was running...??
The ECU/PCM/Whatever shows code "P0204 - Injector Circuit/Open - Cylinder 4" and it was also saying that for the 2nd injector sometimes. I should also say that 2 days ago I was starting up the Jeep to drive home from work and it wouldn't start and it was definitely the fuel injectors not working right. I hit them with a screwdriver and jiggled the wires and cranked the motor over and over but it wouldn't start. Then remember that if I pushed the pedal to the floor while cranking, the ECU would go into "clear flood mode" and thats how it finally started up although it idled really bad for a while - probably the spark plugs fowled with fuel. How could the fuel injectors have flooded the engine??
Check this out - http://www.ausjeepoffroad.com/forum/...ad.php?t=92236
Last night I checked their resistance - all were 12 to 13.5 Ohms. Even the ones that were failing. I checked the wires going to them and they were good. I "listened" to them with the screwdriver stethoscope method and they all sounded different then each other..! Like, no constancy at all. After idling for a while, the 2nd and 4th injectors where both behaving a little better (if I disconnected them, the idle would get much worse where as when I first started the engine there was no difference, that's how I knew they were "working" somewhat) and the idle was only a little choppy. Or maybe the long-term fuel trim may have compensated enough to make it seem like its gotten better when they really haven't. Again, the resistance ranged from 12 to 13.5 volts for all, including the bad ones, checked while the engine was running...??
The ECU/PCM/Whatever shows code "P0204 - Injector Circuit/Open - Cylinder 4" and it was also saying that for the 2nd injector sometimes. I should also say that 2 days ago I was starting up the Jeep to drive home from work and it wouldn't start and it was definitely the fuel injectors not working right. I hit them with a screwdriver and jiggled the wires and cranked the motor over and over but it wouldn't start. Then remember that if I pushed the pedal to the floor while cranking, the ECU would go into "clear flood mode" and thats how it finally started up although it idled really bad for a while - probably the spark plugs fowled with fuel. How could the fuel injectors have flooded the engine??
Check this out - http://www.ausjeepoffroad.com/forum/...ad.php?t=92236
Last edited by mannydantyla; 03-09-2018 at 07:20 PM.
Trending Topics
03-09-2018, 09:59 AM
#8
Seasoned Member
Thread Starter
Join Date: Dec 2016
Location: Lawrence ****ing Kansas
Posts: 391
Likes: 0
Received 6 Likes
on
6 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
I should also be concerned about the ****ty injectors leaking fuel into the engine, getting gas into the oil and ruining the engine bearings. !!!
OK I'm replacing all 6 of them with quality ones or the oem ones I still have.
OK I'm replacing all 6 of them with quality ones or the oem ones I still have.
03-09-2018, 12:11 PM
#9
Seasoned Member
I was researching this out and seen something about the amount of fuel an injector puts out and remember it said to get the injectors that meet your engines’ recommended need. It had a chart for the diff years of the 4.0 and a chart of different numbers of injectors. Just sayin...
03-09-2018, 01:39 PM
#10
Seasoned Member
Thread Starter
Join Date: Dec 2016
Location: Lawrence ****ing Kansas
Posts: 391
Likes: 0
Received 6 Likes
on
6 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
That's one theory. How well is a steady stream of gas mixing with the air in the intake port before the top of the piston is reached?
A lot of money is spent on real studies to determine how to better atomize fuel from injectors to improve the efficiency of the combustion process. Here is one such study, for instance, that uses laser diffraction to measure particle size: https://www.laboratoryequipment.com/...ection-science
You may ask yourself, "if atomization from the fuel injectors isn't important, why is so much time and money spent trying to determine how to do it better?"
Or, you may not...
I'll put in another good word for jhc7399. There were noticeable improvements in drive-ability after I upgraded with his 784s. The majority of that improvement was likely because I was replacing older injectors with clean ones so they were atomizing better though, not necessarily just because they have 4 holes.
A lot of money is spent on real studies to determine how to better atomize fuel from injectors to improve the efficiency of the combustion process. Here is one such study, for instance, that uses laser diffraction to measure particle size: https://www.laboratoryequipment.com/...ection-science
You may ask yourself, "if atomization from the fuel injectors isn't important, why is so much time and money spent trying to determine how to do it better?"
Or, you may not...
I'll put in another good word for jhc7399. There were noticeable improvements in drive-ability after I upgraded with his 784s. The majority of that improvement was likely because I was replacing older injectors with clean ones so they were atomizing better though, not necessarily just because they have 4 holes.
You may ask yourself, and I right or am I wrong?!
03-09-2018, 01:44 PM
#11
Seasoned Member
Thread Starter
Join Date: Dec 2016
Location: Lawrence ****ing Kansas
Posts: 391
Likes: 0
Received 6 Likes
on
6 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
I was researching this out and seen something about the amount of fuel an injector puts out and remember it said to get the injectors that meet your engines’ recommended need. It had a chart for the diff years of the 4.0 and a chart of different numbers of injectors. Just sayin...
--------------------------
BTW, here's what OEM injectors are over the years, plagiarized from here: https://www.cherokeeforum.com/f2/mor...x2/#post173704
4.0L
'96-'98 #53030778 23.2lb/hr @ 49psi
'99-'04 #4854181 22.5lb/hr @ 49psi
2.4L
'96-'02 #53030778 23.2lb/hr @ 49psi
'96-'98, ........53030778, ...Grey, .........49psi, .................23.2lb/hr
'99-'04, .........4854181, ...Blue tip, .....49psi, .................22.5lb/hr
Replacement:
Ford Motorsport 19.0lb/hr @ 39psi (Part no. FMS-M9593-C302)
Ford Motorsport 24.0lb/hr @ 39psi (Part no. FMS-M9593-A302)
Ford Motorsport 30.0lb/hr @ 39psi (Part no. FMS-M9593-B302)
Pre 96 the fuel pressure is lower at 39 PSI.
'91-'93 #33007127 21.0lb/hr @ 39psi
'91-'93, ........33007127, ...Brown, .......39psi, .................21.0lb/hr
The Ford injectors are rated at the same pressure, so yes, you can do this as well..... By using:
Ford Motorsport 24.0lb/hr @ 39psi (Part no. FMS-M9593-A302)
'86-'90, ........53003956, ...Black, ........39psi, .................18.6lb/hr
These would be your direct swap ins...
Ford Motorsport 19.0lb/hr @ 39psi (Part no. FMS-M9593-C302)
I believe they can be found in any newer Mustang with the 4.6L
little math for ya.
Injector size (lb/hr) = (horsepower x 0.5)/(no.of cylinders x 0.8 )
So say you have a 250 horse I6...
100/4.8=21lb/hr injector
So for a 30 lb/hr injector, you would need about a 290 horse motor to utilize them.
--------------------------------
And here's what vehicles had the "neon" injectors, Bosch part number 0280155703, which are what you want for 87-98 XJs
Fuel Injector CHRYSLER 1995 CIRRUS LX 2.4L 4 Cyl.
Fuel Injector CHRYSLER 1996 CIRRUS LX 2.4L 4 Cyl.
Fuel Injector CHRYSLER 1997 CIRRUS LX 2.4L 4 Cyl.
Fuel Injector CHRYSLER 1997 CIRRUS LXI 2.4L 4 Cyl.
Fuel Injector CHRYSLER 1996 SEBRING JX 2.4L 4 Cyl.
Fuel Injector CHRYSLER 1997 SEBRING JX 2.4L 4 Cyl.
Fuel Injector CHRYSLER 1997 SEBRING JXI 2.4L 4 Cyl.
Fuel Injector DODGE van 1996 CARAVAN 2.4L 4 Cyl.
Fuel Injector DODGE van 1997 CARAVAN 2.4L 4 Cyl.
Fuel Injector DODGE van 1996 CARAVAN SE 2.4L 4 Cyl.
Fuel Injector DODGE van 1997 CARAVAN SE 2.4L 4 Cyl.
Fuel Injector DODGE van 1996 GRAND CARAVAN 2.4L 4 Cyl.
Fuel Injector DODGE van 1997 GRAND CARAVAN 2.4L 4 Cyl.
Fuel Injector DODGE van 1996 GRAND CARAVAN SE 2.4L 4 Cyl.
Fuel Injector DODGE van 1997 GRAND CARAVAN SE 2.4L 4 Cyl.
Fuel Injector DODGE 1995 NEON 2.0L 4 Cyl.
Fuel Injector DODGE 1997 NEON 2.0L 4 Cyl.
Fuel Injector DODGE 1995 NEON HIGHLINE 2.0L 4 Cyl.
Fuel Injector DODGE 1997 NEON HIGHLINE 2.0L 4 Cyl.
Fuel Injector DODGE 1995 NEON SPORT 2.0L 4 Cyl.
Fuel Injector DODGE 1997 NEON SPORT 2.0L 4 Cyl.
Fuel Injector DODGE 1995 STRATUS 2.0L 4 Cyl.
Fuel Injector DODGE 1995 STRATUS 2.4L 4 Cyl.
Fuel Injector DODGE 1996 STRATUS 2.0L 4 Cyl.
Fuel Injector DODGE 1996 STRATUS 2.4L 4 Cyl.
Fuel Injector DODGE 1997 STRATUS 2.4L 4 Cyl.
Fuel Injector DODGE 1995 STRATUS ES 2.0L 4 Cyl.
Fuel Injector DODGE 1995 STRATUS ES 2.4L 4 Cyl.
Fuel Injector DODGE 1996 STRATUS ES 2.0L 4 Cyl.
Fuel Injector DODGE 1996 STRATUS ES 2.4L 4 Cyl.
Fuel Injector DODGE 1997 STRATUS ES 2.4L 4 Cyl.
Fuel Injector PLYMOUTH 1996 BREEZE 2.0L 4 Cyl.
Fuel Injector PLYMOUTH 1997 BREEZE 2.4L 4 Cyl.
Last edited by mannydantyla; 03-09-2018 at 01:54 PM.
03-09-2018, 02:18 PM
#13
Seasoned Member
Thread Starter
Join Date: Dec 2016
Location: Lawrence ****ing Kansas
Posts: 391
Likes: 0
Received 6 Likes
on
6 Posts
Year: 1997
Model: Cherokee
Engine: 4.0
And I'm pretty sure, but don't quote me on it, that these injectors will work for 96+ XJ's but the 99+ engines will need USCAR to EV (EV1?) adapters
Bosch 0280155923
172.0 g/min. @ 43 psi (22.7 lb/hr)
EV6, 12 Ohm resistance
CADILLAC 2000 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2004 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2005 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 DEVILLE DHS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 DEVILLE DHS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 DEVILLE DHS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2004 DEVILLE DHS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2004 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2005 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2000 ELDORADO 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 ELDORADO ESC 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 ELDORADO ESC 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 ELDORADO ETC 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 ELDORADO ETC 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2000 SEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 SEVILLE SLS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 SEVILLE SLS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 SEVILLE SLS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2004 SEVILLE SLS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 SEVILLE STS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 SEVILLE STS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 SEVILLE STS 4.6L 8 Cyl. Fuel Injector MM 0280155923
And also Pontiac Bonnevilles and Oldmobiles
Bosch 0280155923
172.0 g/min. @ 43 psi (22.7 lb/hr)
EV6, 12 Ohm resistance
CADILLAC 2000 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2004 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2005 DEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 DEVILLE DHS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 DEVILLE DHS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 DEVILLE DHS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2004 DEVILLE DHS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2004 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2005 DEVILLE DTS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2000 ELDORADO 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 ELDORADO ESC 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 ELDORADO ESC 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 ELDORADO ETC 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 ELDORADO ETC 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2000 SEVILLE 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 SEVILLE SLS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 SEVILLE SLS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 SEVILLE SLS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2004 SEVILLE SLS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2001 SEVILLE STS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2002 SEVILLE STS 4.6L 8 Cyl. Fuel Injector MM 0280155923
CADILLAC 2003 SEVILLE STS 4.6L 8 Cyl. Fuel Injector MM 0280155923
And also Pontiac Bonnevilles and Oldmobiles
Last edited by mannydantyla; 03-09-2018 at 02:37 PM.
03-09-2018, 02:39 PM
#15
Junior Member
Join Date: Mar 2018
Posts: 51
Likes: 0
Received 0 Likes
on
0 Posts
Year: 89
Model: Cherokee(XJ)
If you get the right ones...they cant hurt? One of my old injectors on my 89 was leaking at the seam (2 piece injectors) and if that hits your exhaust manifold you could be in trouble.
When you can get 784's for 60 bucks a set, (or heck, Id even pay more,) and pass California smog with flying colors with em, whats not to like? Even if there is no difference in mileage or power. Plus, they are a pretty yellow lol.
I could tell a slight difference after the swap, but anything could have been better than the stock ones that were in it.
Mark
EDIT: Also, there are the 12 hole injectors around now, and guys are raving about them.
When you can get 784's for 60 bucks a set, (or heck, Id even pay more,) and pass California smog with flying colors with em, whats not to like? Even if there is no difference in mileage or power. Plus, they are a pretty yellow lol.
I could tell a slight difference after the swap, but anything could have been better than the stock ones that were in it.
Mark
EDIT: Also, there are the 12 hole injectors around now, and guys are raving about them.