1998 Jeep Laredo engine loses power during accelleration

AUGUSTINE CASTRO

MEMBER
1998 JEEP GRAND CHEROKEE LAREDO
6 CYL
4WD
AUTOMATIC
67,000 MILES

I bought this car new, during the past few months it has been losing power and sputtering during accelleration from a dead stop and when slowing down and accellerating. This was happening intermitently during use. I had it to my mechanic several times with no success. After all his repair work it now only does it when I first start up. It doesn't happen again unless the car lays up for awhile. So far he changed the cap, rotor, pick up coils, throttle position sensor coolant sensor, fuel pump, and cleaned up several other things. The problem is that the check engine light never comes on when this happens. Please Help" JOHN

Monday, December 7th, 2009 AT 12:18 PM

1 Reply

BEEF99

MEMBER
152 POSTS

Here is a list of things that could cause this problem, sorry there is so much but without actually being there, I cannot pinpoint the problem. It could be a sensor and although they may not set of your check engine light or register on the mechanics computer, it may be an intermittent problem with a sensor such as your throttle position, crank position, map, and idle air control valve sensors. It could also be you catalytic converter getting plugged, it could be your 02 sensor, it could be you ecu bolts shorting out your system, it could be your fuel pump getting weak, or it could be your governor pressure regulator located in your transmission. Make sure to have a really good mechanic eliminate any of these problem areas. Hope this helps! I had the same problem and it was my governor pressure regulator and it cost about $250 to replace at my local shop in Michigan.

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Monday, December 7th, 2009 AT 12:54 PM