post #1 of Old 10-10-2010, 10:14 AM Thread Starter
BigLebowski
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1997 ZJ 
 
Join Date: Oct 2010
Location: Lake Worth
Posts: 5
Starting Issue

Hello, I just joined the jeep community yesterday. I bought a 1997 Grand Cherokee Limited with the 6 cylinder! This site has a wealth of knowledge, thanks everyone. When I bought the car it fired up without a hitch. When I tried to start it up this morning all I got was cranking and no running. If someone could throw some insight my way I would be very thankful. Im no mechanic but I think it is a fuel problem...?

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post #2 of Old 10-10-2010, 03:20 PM
Newb1995jeepgc
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1994 ZJ 
 
Join Date: Jun 2010
Location: Gallatin
Posts: 572
Ok to see if its a fuel problem... when ur cranking it do u smell gas fumes coming out the tale pipe. if u do then it aint a fuel problem.

1995 Jeep ZJ Limited V8- 213k- sold
2000 Jeep WJ I6- 185xxx-sold
1994 Jeep ZJ Limited Red I6- 210k
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post #3 of Old 10-10-2010, 04:22 PM
classicmetalman
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Join Date: May 2005
Location: SoCal
Posts: 457
Could be the infamous Crank Position Sensor.

If you wanna check fuel system:
Do you hear the fuel pump when you turn the key to "on"?
If so get a fuel pressure gauge and check fuel pressure before a cold start and after warmed up. Start with that and post your findings.

Welcome to JF

Robert
93 Laredo 4.0
96 Limited 4.0

Quote:
Originally Posted by murphydajeep View Post
I say you should still hit something just to let it know you mean business, or shake a hammer at it in a menacing fashion
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post #4 of Old 10-10-2010, 06:20 PM Thread Starter
BigLebowski
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1997 ZJ 
 
Join Date: Oct 2010
Location: Lake Worth
Posts: 5
Thanks, the pump does come on. Im going to check the fuel pressure tommorow. Then replace the CPS. I appreciate the help. I will post my findings.
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post #5 of Old 10-10-2010, 06:43 PM
classicmetalman
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When you check pressure cold, do so "before" you crank engine over. You wanna see if your leaking fuel pressure over a period of time (injector, check valve, or system leak)

Robert
93 Laredo 4.0
96 Limited 4.0

Quote:
Originally Posted by murphydajeep View Post
I say you should still hit something just to let it know you mean business, or shake a hammer at it in a menacing fashion
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post #6 of Old 10-10-2010, 06:55 PM
Newb1995jeepgc
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1994 ZJ 
 
Join Date: Jun 2010
Location: Gallatin
Posts: 572
Good Luck my good sir and hope it aint nothing pricey

1995 Jeep ZJ Limited V8- 213k- sold
2000 Jeep WJ I6- 185xxx-sold
1994 Jeep ZJ Limited Red I6- 210k
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post #7 of Old 10-10-2010, 09:20 PM
freakinheep89
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1995 ZJ 
 
Join Date: Jan 2010
Location: Mobile, Alabama
Posts: 3,252
its probably fuel but to rule out the CKS just pop off the wire that runs from the coil to the distributor, have someone try to start it while you hold the wire close to the block or valve cover, it should arc over rapidly. if you have a multimeter you can also test for voltage at the coil harness

TJ-
95 ZJ 5.2- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.

Quote:
Originally Posted by slayercr23 View Post
How would i go about Stroking it?
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post #8 of Old 10-30-2010, 06:39 AM Thread Starter
BigLebowski
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1997 ZJ 
 
Join Date: Oct 2010
Location: Lake Worth
Posts: 5
Problem Solved

Thanks for the advice guys, it turned out to be a bad connection at the pcm. I replaced the wiring harness and pcm. I was able to find a rebuilt one for $200 dealership wanted $800! Once the new one was in it threw out the code for the IAC. Replaced that and Im good to go.

On another note, I noticed a rattling sound coming from the front end when Im idling in first gear. It doesn't always make this noise, but when it does it is pretty noticable. Sounds like something is shaking against something else possibly.
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post #9 of Old 10-30-2010, 07:33 PM
freakinheep89
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1995 ZJ 
 
Join Date: Jan 2010
Location: Mobile, Alabama
Posts: 3,252
check the exhaust shielding on the cat. also tap it with a screwdriver and see if it rattles, they often cause rattling at idle when they die and the shielding typically breaks free of them and can cause it as well

TJ-
95 ZJ 5.2- D30/XJ shafts/D35 Yukon alloys,249, 2"BB, 30x9.5"Wildcat EXT,lots of motor mods, rancho shocks & stabilizer.

Quote:
Originally Posted by slayercr23 View Post
How would i go about Stroking it?
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post #10 of Old 10-30-2010, 11:44 PM Thread Starter
BigLebowski
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1997 ZJ 
 
Join Date: Oct 2010
Location: Lake Worth
Posts: 5
Thanks heep, I read about the cat in another threadd and im going to check that ut on my nect day off. I cant thank you ennough, this had been the most helpful forumi have ever participated in.
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