2002 GC Laredo fuel pump or cam sensor problem???
Thread Starter
Newbie
Joined: Dec 2012
Posts: 3
Likes: 0
Model: Cherokee
2002 GC Laredo fuel pump or cam sensor problem???
Newbie here, thanks in advance for any help/info/advise you can offer me!!
Have a 2002 Grand Cherokee Laredo that developed a starting problem. Last week it seemed to drag a bit when starting, battery 3 yrs old so replaced it. Drove it couple times that day all fine till about the 3rd engine start up. Cranked fine, turned over but didn’t catch, after about 4 attempts she fired up. All was ok for a week… then on the way back from an errand yesterday it stalled at a traffic light, cranked and started right up. Later it died right smack in the middle of a parking lot. No coaxing to start helped. Let it sit for a couple hours, went back and it fired right up. This morning I took it to a garage, cranked right up. No error light has come on.
Garage scanner/diagnostics indicated the cam sensor. So to the tune of 400 bucks she sits at the garage for repair. Research indicates this may not be the issue at all. Can anyone please offer experience/thoughts/expertise as to what is going on??
Thanks again for the forum, just found it and joined, will be back here many times I know. LOL, already have a couple other issues I would like to pick your brains about.
Have a 2002 Grand Cherokee Laredo that developed a starting problem. Last week it seemed to drag a bit when starting, battery 3 yrs old so replaced it. Drove it couple times that day all fine till about the 3rd engine start up. Cranked fine, turned over but didn’t catch, after about 4 attempts she fired up. All was ok for a week… then on the way back from an errand yesterday it stalled at a traffic light, cranked and started right up. Later it died right smack in the middle of a parking lot. No coaxing to start helped. Let it sit for a couple hours, went back and it fired right up. This morning I took it to a garage, cranked right up. No error light has come on.
Garage scanner/diagnostics indicated the cam sensor. So to the tune of 400 bucks she sits at the garage for repair. Research indicates this may not be the issue at all. Can anyone please offer experience/thoughts/expertise as to what is going on??
Thanks again for the forum, just found it and joined, will be back here many times I know. LOL, already have a couple other issues I would like to pick your brains about.
CF Veteran
Joined: Sep 2009
Posts: 8,567
Likes: 20
From: ☼ Blackhole Sun
Year: My Jeep is a GMC
If you believe your research more so than a diagnostic scanner, carry on. No CEL could be a burned out bulb or a PCM on it's way out but whatever.
BTW: theres nothing Grand about our Cherokees, may want to post your question here: https://www.cherokeeforum.com/f5/
BTW: theres nothing Grand about our Cherokees, may want to post your question here: https://www.cherokeeforum.com/f5/
Senior Member
Joined: Jul 2010
Posts: 501
Likes: 2
From: Connecticut
Year: 98
Model: Cherokee
Engine: 4.0l
Newbie here, thanks in advance for any help/info/advise you can offer me!!
Have a 2002 Grand Cherokee Laredo that developed a starting problem. Last week it seemed to drag a bit when starting, battery 3 yrs old so replaced it. Drove it couple times that day all fine till about the 3rd engine start up. Cranked fine, turned over but didn’t catch, after about 4 attempts she fired up. All was ok for a week… then on the way back from an errand yesterday it stalled at a traffic light, cranked and started right up. Later it died right smack in the middle of a parking lot. No coaxing to start helped. Let it sit for a couple hours, went back and it fired right up. This morning I took it to a garage, cranked right up. No error light has come on.
Garage scanner/diagnostics indicated the cam sensor. So to the tune of 400 bucks she sits at the garage for repair. Research indicates this may not be the issue at all. Can anyone please offer experience/thoughts/expertise as to what is going on??
Thanks again for the forum, just found it and joined, will be back here many times I know. LOL, already have a couple other issues I would like to pick your brains about.
Have a 2002 Grand Cherokee Laredo that developed a starting problem. Last week it seemed to drag a bit when starting, battery 3 yrs old so replaced it. Drove it couple times that day all fine till about the 3rd engine start up. Cranked fine, turned over but didn’t catch, after about 4 attempts she fired up. All was ok for a week… then on the way back from an errand yesterday it stalled at a traffic light, cranked and started right up. Later it died right smack in the middle of a parking lot. No coaxing to start helped. Let it sit for a couple hours, went back and it fired right up. This morning I took it to a garage, cranked right up. No error light has come on.
Garage scanner/diagnostics indicated the cam sensor. So to the tune of 400 bucks she sits at the garage for repair. Research indicates this may not be the issue at all. Can anyone please offer experience/thoughts/expertise as to what is going on??
Thanks again for the forum, just found it and joined, will be back here many times I know. LOL, already have a couple other issues I would like to pick your brains about.
Turned out to be the wiring harness from the PCM that runs along the firewall. It was shorting on the head bolt (stud) right where it runs between the firewall and motor and turns towards the fuel injectors on the driver side. Only takes a minute to run you're hand back there. Feel for the stud and then feel the harness in that same spot. If there's a hole in the wire loom, it'd be well worth flipping. the harness over and split it open. Check each wire for scunned insulation.
Also worthwhile would be checking the battery with am analyzer or load tester. If the battery is marginally weak it will cause fits with the sensor system.
Just a thought.
Last edited by bobvalli; Jan 1, 2013 at 09:12 AM.
Thread
Thread Starter
Forum
Replies
Last Post
DanO55
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
Aug 28, 2015 07:16 PM
clark40
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
Aug 28, 2015 07:11 AM
jghaenlein
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
8
Aug 27, 2015 07:07 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)