Question about 1995 Jeep Grand Cherokee

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Acceleration Problem My '95 Grand Cherokee Laredo (S6 4.0) runs well most of the time, but after being driven a long time and/or on a hot day, it will start to "chug" during acceleration. It once came close to stalling out, but we shut down the engine and let cool and it did okay. It was also hogging gas when it did this, so I know it's not the transmission. One last thing, the jeep gets an average (according to digital read-out) 16-17 mpg, is this normal?

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And then the following items were listed as the most probable cause here with others like me. If you can talk to a good mechanic look at these scratch one or two off

1. Ignition module/

3. Idle air control motor /O2 sensor?/ throtle position sensor

4. Crank position sensor/ the connector that connects the electrical control unit to the distributor of your vehicle replaced.

5. Fuel pump fuse/relay

Posted on Jun 08, 2009

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Crummy mileage = normal; our '97 which hardly ever is used for trips gets 11-12 MPG around town - don't whine. The best we ever achieved was ~ 18 on the only long trip it ever made. But then we drive stupid too, and are long-time radar detector users.

You didn't mention how many miles you have on yours but one thing might be; you may be due for a timing chain which can cause that surging effect.

Posted on Oct 06, 2008

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