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Sep 9, 2015 | 07:41 PM

#51091

Donald Russell

Newbie

Joined: Sep 2015

Posts: 3

Likes: 0

From: Kansas City Missouri

Year: 1997

Model: Cherokee

Engine: 4.0L

Fuel Rail Question

So I am going to buy the Bosch type 3 injectors my question is can I run the stock fuel rail or do I need an upgraded one?
Also if I need an upgraded one any recommendations for a good one?

Sep 9, 2015 | 09:53 PM

#51092

ITTs_Cole

CF Veteran

Joined: Apr 2014

Posts: 1,028

Likes: 0

From: Hagerstown MD

Year: 93

Model: Cherokee

Engine: 4.0 I6 w/Flux Capacitor

I have a parasitic drain, all fuses pulled, test light doesn't go out. Where do i look next? Any "common" drains?

Sep 9, 2015 | 10:12 PM

#51093

salad

Herp Derp Jerp

Joined: Nov 2011

Posts: 18,251

Likes: 17

From: Parham, ON

Year: 1999

Model: Cherokee

Engine: 4.0L OBD-II

Quote:

Originally Posted by Donald Russell

So I am going to buy the Bosch type 3 injectors my question is can I run the stock fuel rail or do I need an upgraded one?
Also if I need an upgraded one any recommendations for a good one?

What's a Bosch Type 3 injector?

The typical upgrade for 1997 4.0Ls is Bosch 0280155703, found in mid-to-late '90s Chryslers, predominantly Neons. Straight swap.

Sep 9, 2015 | 11:28 PM

#51094

XJwonders

CF Veteran

Joined: Jan 2013

Posts: 19,219

Likes: 45

From: west chester, pa

Year: 1999

Engine: 4.0

Quote:

Originally Posted by salad

What's a Bosch Type 3 injector? The typical upgrade for 1997 4.0Ls is Bosch 0280155703, found in mid-to-late '90s Chryslers, predominantly Neons. Straight swap.

from a 2.4 engine.

Sep 9, 2015 | 11:28 PM

#51095

XJwonders

CF Veteran

Joined: Jan 2013

Posts: 19,219

Likes: 45

From: west chester, pa

Year: 1999

Engine: 4.0

Quote:

Originally Posted by Donald Russell

So I am going to buy the Bosch type 3 injectors my question is can I run the stock fuel rail or do I need an upgraded one? Also if I need an upgraded one any recommendations for a good one?

it will be a plug and play to your existing fuel rail.

Sep 10, 2015 | 07:37 AM

#51096

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by sycoglitch

Yes to water over seafoam lol. As Cruiser says, use a man cup and pour it in, not no cissy spray bottle

This:

Attached Thumbnails

XJ Ask the Question Thread-water-carbon-cup.jpg

Sep 10, 2015 | 08:15 AM

#51097

sycoglitch

CF Veteran

Joined: Sep 2010

Posts: 12,692

Likes: 6

From: Mercer County, NJ

Year: 2001

Model: Cherokee

Engine: 4.0L I6 HO

Quote:

Originally Posted by cruiser54

This:

Ha, yessssssss

Sep 10, 2015 | 08:23 AM

#51098

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by sycoglitch

Ha, yessssssss

Did I make that for you originally?

Sep 10, 2015 | 08:53 AM

#51099

sycoglitch

CF Veteran

Joined: Sep 2010

Posts: 12,692

Likes: 6

From: Mercer County, NJ

Year: 2001

Model: Cherokee

Engine: 4.0L I6 HO

Quote:

Originally Posted by cruiser54

Did I make that for you originally?

Yes you ***, and my avatar mysteriously changed too

Sep 10, 2015 | 08:59 AM

#51100

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by sycoglitch

Yes you ***, and my avatar mysteriously changed too

Imagine that!!!! Must be gremlins.

Sep 10, 2015 | 09:29 AM

#51101

Whitetail57

Newbie

Joined: Jul 2013

Posts: 23

Likes: 0

Year: 1995

Model: Cherokee

Engine: 4.0 liter

Quote:

Originally Posted by ehall

sounds like one of the injectors is leaking out and flooding a chamber

pull the rail and lay it over a piece of cardboard, then prime the pump and see what happens

Okay thank you ehall. Sorry it took me soo long to reply. I wasn't able to access my account for the last week.
I'll definitely try that today though. And just to clarify, you mean priming as in turning the key to the on position a couple times, correct?

Sep 10, 2015 | 10:06 AM

#51102

ehall

CF Veteran

Joined: Jan 2015

Posts: 1,381

Likes: 3

From: Southern Maryland

Year: 1991

Model: Cherokee

Engine: 1999 4.0L

Quote:

Originally Posted by Whitetail57

yeah you want to pressurize the rail and see if the injectors leak

ps--it may only happen when the engine is warm

Last edited by ehall; Sep 10, 2015 at 10:12 AM.

Sep 10, 2015 | 12:16 PM

#51103

Whitetail57

Newbie

Joined: Jul 2013

Posts: 23

Likes: 0

Year: 1995

Model: Cherokee

Engine: 4.0 liter

If I find that one of them are leaking would it be from bad sealing or seating on the o-ring

Sep 10, 2015 | 12:29 PM

#51104

NewKindOfClown

Moderator of Jeeps

Joined: Jul 2011

Posts: 21,029

Likes: 3

From: Frederick, MD from Cleveland, OH

Year: 1993 YJ Wrangler

Engine: 4.0 I6

Quote:

Originally Posted by Whitetail57

If I find that one of them are leaking would it be from bad sealing or seating on the o-ring

Usually a tear in an O-ring, but it could be a bad seat

Sep 10, 2015 | 02:30 PM

#51105

ehall

CF Veteran

Joined: Jan 2015

Posts: 1,381

Likes: 3

From: Southern Maryland

Year: 1991

Model: Cherokee

Engine: 1999 4.0L

Quote:

Originally Posted by Whitetail57

If I find that one of them are leaking would it be from bad sealing or seating on the o-ring

if it leaks just from pressure then the pintle inside is probably damaged or dirty

they are mechanical devices, they wear out eventually