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GMC Jimmy Engine and Performance Problems

12 messages,  Last post on Aug 09, 2009 at 2:48 PM

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What is this discussion about? GMC Jimmy, Auto Repair, SUV

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#10 of 12 Re: Jimmy won't shift [mmeuli] by peterock81 Apr 07, 2009 (6:46 am)
Replying to: mmeuli (Dec 10, 2007 9:44 am) I had this problem with my jimmy and found it was the throttle position sensor. i as well had multiple codes including codes saying low input and high input to my map sensor. The truck shifted extremely hard going from 1st to 2nd and 2nd to D. I went to the junk yard and pulled one off a wrecked blazer for my truck 6.50 vs 45 or 50 bucks as a trial and error with the sensors. I tried the TPS first because from what reseach i did online it seemed to be the most common solution for the series of codes being tripped
#11 of 12 1996 GMC Jimmy won't stay running HELP by cproulx May 05, 2009 (3:48 am)
I just changed the fuel filter on my Jimmy - it ran fine for 2-3 days. Now it will start and run in park but when I put it into gear and give it gas it sputters hesitates and stalls out. Anyone have any ideas?
#12 of 12 99 JIMMY SLE WARM ENGINE HARD STARTING by puzzledjimmy Aug 09, 2009 (2:48 pm)
I HAVE A 99 JIMMY SLE. IT STARTS UP NORMALLY FIRST THING BUT WHEN IT GETS WARM AND I STOP TO DO SOMETHING FOR ABOUT 15 - 20 MINUTE, IT TAKES A FEW SECONDS TO TURN OVER. I MAY HAVE TO GIVE IT A LITTLE GAS TO TURN IT OVER. IT RUNS GREAT OTHERWISE. I HAVE REPLACED THE GAS TANK,GAS PUMP AND SENDING UNIT. THE FUEL FILTER. THE MAP SENSOR AND AIR FILTER. I HAVE HAD THE SPIDER INJECTORS CHECKED AND THEY ARE FINE. I GET BETWEEN 16 AND 18 MILES TO A GALLON. TOP PERFORMANCE FOR THIS VEHICLE I WAS TOLD. CAN ANYONE TELL ME WHAT MAY BE WRONG?

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