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Showing posts with the label CATS

Vehicle Shudders while going Uphill

Jeep Grand Cherokee, shuddering Q: Its the 1996 Jeep Grand Cherokee with 72K. All routine maintenance performed regularly without any missed. The vehicle is in great working order except for the following problem. Our check engine light keeps coming on when accelerating up hills at 55+mph. When we are about at the crest of a hill the light starts flashing then when the vehicle starts to down shift it starts shuddering real bad. This shuddering will last until you back off the gas and slow down. We have had the valve springs replaced, then had the mechanics do some work (because of the codes thrown) and this last week a new computer was installed. Two days after the computer was replaced the check engine light came back on under these same conditions. What could be the problem? A: ALL DATA IS GREAT SOURCE. Join ALLDATA.The ALLDATA Information System shows several Technical Service Bulletins (TSB’s) that are related to driveability problems with check engine lights coming Here is t...