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Old 06-03-2004, 03:00 PM   #1
Josh_is1
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'90 jeep cherokee lerado won't start

ok my jeep won't start... seems like its not getting any fuel i think i can here the pump turn on though... we were in an accident about a mouth ago, could the automatic shutoff switch (don't know if thats what its called but my neighbor told me when you get into an accident theres a switch that cuts off fuel supply) have been engaged? it does turn over can anyone help.... i read it could be the fuel relays, fuel filter, or fuel pump...
Thanks in advance

PS... its not cold or hot right now around 70, 80 degrees

i been reading somestuff from jeepman from ppl with similar problems and it was there CRANKSHAFT POSITION SENSOR could this be mine

Last edited by Josh_is1; 06-03-2004 at 04:32 PM.
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Old 06-03-2004, 10:08 PM   #2
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Re: '90 jeep cherokee lerado won't start

Got to check the basics first. Got spark? If yes, then proceed to step 2. Got fuel? If you were to have a problem with the CPS you would not have spark.
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Old 06-04-2004, 01:11 PM   #3
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Re: '90 jeep cherokee lerado won't start

no spark or fuel...
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Old 06-04-2004, 01:55 PM   #4
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Re: '90 jeep cherokee lerado won't start

Tackle one thing at a time. Start with the distributor...make sure the impact didn't knock something loose. Pull the #1 spark plug wire and have someone crank it to see if you're getting spark there. If you are, then you need to work on the fuel system.
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Old 06-04-2004, 02:20 PM   #5
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Re: '90 jeep cherokee lerado won't start

i did the number 1 plug thing cause i've emailed jeepman... and the accident was a while ago but it just started to not start... and the fuel check i did is the presure test on the fuel rail or somethng like that
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Old 06-04-2004, 05:05 PM   #6
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I don't know a ton about my jeep, but one thing that happens to me all the time (and a friend of mine who also has a jeep) is that the TDC sensor wire is crappy, and I have to wiggle the connection a bit before the jeep starts. Otherwise, it'll just crank forever. Today, I went and crimped the connector just a little bit with some pliers, so hopefully that'll be more of a permanent fix. There's days when I have to wiggle that bastard every time I want to start the jeep.

Good luck.

Mike


EDIT:
Oops... I just read your post all the way through... Should've done that before replying. Anyways, TDC wire is probably not the case sorry... might be worth a check anyways. Also, the switch you're talking about is called an inertia switch. I've heard that it's only for when the car is flipped, but that could be wrong.
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Old 06-04-2004, 05:23 PM   #7
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Re: '90 jeep cherokee lerado won't start

where is that wire your talking about??? i found out earily that they don't have the inertia switches on jeeps
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Old 06-04-2004, 08:31 PM   #8
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I don't know which engine you've got in your Laredo, but in mine (which is a 4.0L straight 6, it's towards the rear of the engine, right behind the last fuel injector, sitting on top of the block. It's a threaded post that sticks up out of the block, and there's a single wire that goes to it. The connection is just a metal sleeve (covered by an L-shaped rubber sleeve) that slides onto the post... Like I said though, if this is something that happened due to an accident, I doubt it's the TDC wire, but always worth a shot... I'll see if I can snap a picture of the connection.
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Old 06-04-2004, 08:44 PM   #9
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Here's two pics of the TDC wire...




Closer:




Really hope that helps you...

Mike
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Old 06-05-2004, 05:16 PM   #10
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Re: '90 jeep cherokee lerado won't start

thanks mike i did what you said and it started but you have to keep givin it gas like crazy or it seems like it will stall, do yo uknow what that can be?

acctually it seems to run fine... it was probably just cause it hasn't been started in a week....
My mom said thank you so much... "tell him he made me the happiest woman on earth" lol

ohh and thks for taking your time out and snappin a pic that helped.
Thanks again
Just hope it stays running
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Old 06-05-2004, 07:21 PM   #11
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No problem, glad I could help.

As far as the stalling problem, I can't hazard a guess... I would check all the spark plugs and wires first... maybe want to check the air filter too?
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