09-21-2015, 03:49 PM
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XJ Ask the Question Thread
03-01-2016, 06:53 AM
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,971
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1,257 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
The butt connectors are a huge source of electrical resistance compared to soldering. And, they get worse over time.
03-01-2016, 07:03 AM
Beach Bum
Recalls
Manufacturer: CHRYSLER CORPORATION
SUMMARY:
DURING ASSEMBLY OF THE FRAME, A FILLET WELD THAT JOINS THE INNER STEERING GEAR ATTACHMENT REINFORCEMENT TO THE FRAME RAIL, WAS OMITTED.
CONSEQUENCE:
DUE TO HIGH STEERING LOAD EVENTS, VEHICLES CAN EXHIBIT BROKEN STEERING GEAR ATTACHING BOLTS OR FRAME RAIL CRACKING AT THE STEERING GEAR ATTACHING POINT INCREASING THE RISK OF A VEHICLE CRASH.
REMEDY:
DEALERS WILL INSPECT THE VEHICLES FOR CRACKS IN THE FRAME RAIL. VEHICLES THAT SHOW CRACKS WILL BE EQUIPPED WITH REINFORCEMENT PLATES. VEHICLES THAT ARE FOUND TO BE FREE OF CRACKS WILL HAVE A SLOT CUT IN THE CROSS MEMBER AND THE FILLET WELD WILL BE ADDED.
NOTES:
OWNER NOTIFICATION: OWNER NOTIFICATION IS EXPECTED TO BEGIN DURING MAY 1997. NOTE: OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT CHRYSLER AT 1-800-853-1403. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.
03-02-2016, 04:58 AM
Seasoned Member
Now that we're talking about catalytic converters... My 90 XJ doesn't have one, and I'm not sure it ever did.
Being that as it may, should I consider adding one to my exhaust system?
Does the presence of a converter have an effect on the way the module controls the engine?
Being that as it may, should I consider adding one to my exhaust system?
Does the presence of a converter have an effect on the way the module controls the engine?
03-02-2016, 05:38 AM
CF Veteran
Join Date: Jan 2013
Location: west chester, pa
Posts: 19,216
Likes: 0
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35 Posts
Year: 1999
Engine: 4.0
Now that we're talking about catalytic converters... My 90 XJ doesn't have one, and I'm not sure it ever did. Being that as it may, should I consider adding one to my exhaust system? Does the presence of a converter have an effect on the way the module controls the engine?
03-02-2016, 06:36 AM
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,971
Received 1,550 Likes
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1,257 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
03-02-2016, 10:17 AM
CF Veteran
Is the 99+ intake swap worth it on a 97? I don't know if years really matter, just curious if it's worth the hassle?
I have a 62mm bored TB on the way, and have plans to upgrade the exhaust from the headers back. Or at least get rid of the dimple in the down pipe for a little better flow.
I have a 62mm bored TB on the way, and have plans to upgrade the exhaust from the headers back. Or at least get rid of the dimple in the down pipe for a little better flow.
03-02-2016, 10:18 AM
CF Veteran
Join Date: Jan 2013
Location: west chester, pa
Posts: 19,216
Likes: 0
Received 39 Likes
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35 Posts
Year: 1999
Engine: 4.0
Is the 99+ intake swap worth it on a 97? I don't know if years really matter, just curious if it's worth the hassle? I have a 62mm bored TB on the way, and have plans to upgrade the exhaust from the headers back. Or at least get rid of the dimple in the down pipe for a little better flow.
03-02-2016, 10:26 AM
CF Veteran
03-02-2016, 10:31 AM
CF Veteran
Join Date: Jan 2013
Location: west chester, pa
Posts: 19,216
Likes: 0
Received 39 Likes
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35 Posts
Year: 1999
Engine: 4.0
03-02-2016, 10:37 AM
Beach Bum
99+ Intake Manifold
Good luck finding a definitive answer, let us know if you do. lol
From FourWheeler magazine;
'99-Up Horseshoe Intake
Myth: According to that great wealth of information that is never wrong, the Internet says you'll get a 5-30hp gain thanks to the '99-up 4.0L's swooped, equal length runners and larger plenum volume.
Our Thoughts: While a free-flow intake manifold can deliver more power, it's only going to allow as much air to flow as the cylinder head and camshaft will call for. Upping the intake runner volume too much will cause the intake charge to lose velocity, killing low- and mid-speed power and torque. On a '98-earlier engine running a stock camshaft and unported cylinder head, it's wasted effort.
Claimed Gains: 5-30hp
Actual Gains: 5hp loss on Trasborg's '98 XJ (Project Mileage Master)
From FourWheeler magazine;
'99-Up Horseshoe Intake
Myth: According to that great wealth of information that is never wrong, the Internet says you'll get a 5-30hp gain thanks to the '99-up 4.0L's swooped, equal length runners and larger plenum volume.
Our Thoughts: While a free-flow intake manifold can deliver more power, it's only going to allow as much air to flow as the cylinder head and camshaft will call for. Upping the intake runner volume too much will cause the intake charge to lose velocity, killing low- and mid-speed power and torque. On a '98-earlier engine running a stock camshaft and unported cylinder head, it's wasted effort.
Claimed Gains: 5-30hp
Actual Gains: 5hp loss on Trasborg's '98 XJ (Project Mileage Master)
Last edited by SteveMongr; 03-02-2016 at 10:44 AM.
03-02-2016, 06:53 PM
CF Veteran
Good luck finding a definitive answer, let us know if you do. lol
From FourWheeler magazine;
'99-Up Horseshoe Intake
Myth: According to that great wealth of information that is never wrong, the Internet says you'll get a 5-30hp gain thanks to the '99-up 4.0L's swooped, equal length runners and larger plenum volume.
Our Thoughts: While a free-flow intake manifold can deliver more power, it's only going to allow as much air to flow as the cylinder head and camshaft will call for. Upping the intake runner volume too much will cause the intake charge to lose velocity, killing low- and mid-speed power and torque. On a '98-earlier engine running a stock camshaft and unported cylinder head, it's wasted effort.
Claimed Gains: 5-30hp
Actual Gains: 5hp loss on Trasborg's '98 XJ (Project Mileage Master)
From FourWheeler magazine;
'99-Up Horseshoe Intake
Myth: According to that great wealth of information that is never wrong, the Internet says you'll get a 5-30hp gain thanks to the '99-up 4.0L's swooped, equal length runners and larger plenum volume.
Our Thoughts: While a free-flow intake manifold can deliver more power, it's only going to allow as much air to flow as the cylinder head and camshaft will call for. Upping the intake runner volume too much will cause the intake charge to lose velocity, killing low- and mid-speed power and torque. On a '98-earlier engine running a stock camshaft and unported cylinder head, it's wasted effort.
Claimed Gains: 5-30hp
Actual Gains: 5hp loss on Trasborg's '98 XJ (Project Mileage Master)
03-02-2016, 07:00 PM
Beach Bum