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Unread 10-10-2009, 12:28 PM   #1
greg5942
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jeep wont get out of its own way

I have a 2003 jeep grand cherokee laredo with a 4.0 A/T.when I go to take of from a stop it is very sluggish. I can even put the pedal to the floor it doesnt it help and the engine doesnt even race when the pedal is to the floor.If I put it nuetral and press the gas the engine races just fine.It wont while it is in drive.If I am driving and press the pedal to the floor it starts to go a little faster but the same as before the rpms dont even jump up any higher.It started doing this while I was going up hill on the highway I could not gain any speed going up the hill I had it floored and nothing it seemed like it didnt want to shift down and ended up bucking a few times and my chek engine light flashed but didnt stay on.Any help would be greatly appreciated.Thanks

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Unread 10-10-2009, 02:11 PM   #2
GrandHokie96
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my father had the same thing happen to his WJ 4.0. It wouldnt go into first gear and sometimes second. thats why it feels sluggish, its taking off in second or third gear. on the highway i guess it could be staying in 4th. anyway, the problem is most likely the governer presser solenoid or sensor. both are located in the valve body in the transmission. to have a shop do it youre looking at around $300. its not too hard to diy if you're mechanically inclined. you will need a seal for the transmission pan, the new parts, and enough fluid to refil the trans. it is best to replace both the sensor and the solenoid at the same time, because it could be either one of them. and you could end up doing it twice if you dont chose correctly the first time
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Unread 10-10-2009, 05:02 PM   #3
greg5942
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Thanks hokie that is exactly what I thought it was.I just wanted to describe my problem and see if anyone would say exactly what you said.
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Unread 10-10-2009, 09:40 PM   #4
ratmonkey
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Flashing cel means a major trouble code has been recorded. Pull the codes and see what comes up.
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Unread 10-10-2009, 09:53 PM   #5
impuresoul2k3
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Probably started knocking from being under a high load at low rpms
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Unread 10-10-2009, 10:21 PM   #6
GrandHokie96
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no problem greg, good luck with it
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'98 Grand Cherokee 5.9L V8
-Stock suspension, 235/75R15 BFG AT's, AR767 rims with 4" BS - Fastman 52mm Throttle Body, K&N FIPK Gen 2, Kolak Exhaust, DMH Cutout, DT Headers, M1 Intake - 8300k 9004 Hi/Low HID's, 8000k H3 Off-Road Lamps - Rockford Fosgate P8002 and P4004 amps, 2x 12" Kicker CVR subs, Kicker SS56.2 components in Q-Logic kickpods, Front and rear Punch components, another set of components in the sound bar, 3600 watts total
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Unread 10-11-2009, 02:19 AM   #7
CMARJEEP
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Also, you shouldn't be driving with the transmission like that. You will wear out whatever gear it is starting out in. If you have to drive shift it manually through the gears.

Will it go into first gear if you manually shift it?

I just had the same problem and it was the governor pressure and transducer. Cost like $250 including tranny service.
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Unread 10-12-2009, 05:49 AM   #8
greg5942
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Thanks for all of your advice,as of right now I am not driving it untill i get it fixed.I will let you know how I make out when it is done.Thanks again

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