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PORKchopEXPRE55

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Male Number of posts : 20
Age : 34
Location : Ocean City, MD
Registration date : 2009-02-14

PostSubject: Stumped   Sun Jan 23, 2011 6:51 pm

Okay, My wife's Jeep Grand Cherokee Laredo is acting up. It's been too long since it's last tune up. Today Im getting ready to change the plugs in it. Im worried that this is not going to fix the problem. It starts up every morning, but after letting it run for around 15 min driving or idling it will stall on me. I have even drove it to work and started to slow down for a red light and it stalled on me. now everytime it does this it takes around 10 min. to start it again. within those 10 min. it will crank the whole time but just wont fire up. I was hoping someone had some other idea's on what i should be looking at.

95 jeep grand cherokee laredo 4.7 v8
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mdcj7
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PostSubject: Re: Stumped   Sun Jan 23, 2011 8:35 pm

is the check engine light on?

try replacing the CPS (crankshaft position sensor.)

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81 cj7 258 HEI, MC2100,Clifford header,4WDH 4" lift, 33" tires, T-177, D300, 4:10 gears, aussie locker front and back, Toyota axles, Longfield 30 spline chromoly superaxles, BigDaddy rockers,Mastercraft seats, Full cage

2006 LJ 2 1/2" RC lift 32" tires 3:73 gear LS dana 44 rear 4.0 L 6speed trans,Volant CAI, Magnaflow cat back
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crazyjimmy
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PostSubject: Re: Stumped   Mon Jan 24, 2011 12:28 am

change the fuel filter
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UpnOver
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PostSubject: Re: Stumped   Tue Jan 25, 2011 12:18 pm

Take it too Autozone and let them scan the codes for you. they do it for free. Let me know what the codes are..

We have seen alot of the Idle control module going out on these.. The crank position sensor is a calprit too but usually it wont start at all when they go out.. Since its starting and then stalling consistantly the cam position sensor could be going in and out..

When it stalls and then eventually starts do you have to hold on the gas pedal until it relearns the idle???


If you were closer I would scan them for you...

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PORKchopEXPRE55

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Male Number of posts : 20
Age : 34
Location : Ocean City, MD
Registration date : 2009-02-14

PostSubject: Re: Stumped   Wed Jan 26, 2011 3:39 pm

there is no check engine light on and I do have to give it gas until it's idling properly again. This cam position sensor how hard is this to replace. Im sure I could do it I just dont have much confidence when it comes to stuff like this. Thanks
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mdcj7
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PostSubject: Re: Stumped   Wed Jan 26, 2011 6:29 pm

try this

http://www.jeepforum.com/forum/f13/how-replace-cps-2001-grand-cherokee-876252/

here is some good reading
http://www.jeepforum.com/forum/f13/94-grand-cherokee-stalls-wont-restart-14666/

http://www.jeepforum.com/forum/f13/97-zj-stalls-stop-lights-sometimes-959225/

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81 cj7 258 HEI, MC2100,Clifford header,4WDH 4" lift, 33" tires, T-177, D300, 4:10 gears, aussie locker front and back, Toyota axles, Longfield 30 spline chromoly superaxles, BigDaddy rockers,Mastercraft seats, Full cage

2006 LJ 2 1/2" RC lift 32" tires 3:73 gear LS dana 44 rear 4.0 L 6speed trans,Volant CAI, Magnaflow cat back
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