1997 Jeep Grand Cherokee Stalls at Stops

JEEP CHEROKEE
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ECSPERA
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I have a '97 Jeep Grand Cherokee Limited 69,450 miles and lately it has been idling rough and stalling out. The stalling usually occurs right before I come to a complete stop at a light or stop sign, expecially going uphill. I've had the idle air control cleaned and a tune-up done but none of that has solved my problem. From what I am told the fuel filter is internal to the fuel pump. Is the fuel filter the problem? I've had the jeep a year and a half and it has never been changed. Do I need to change the whole fuel pump to fix this?
Mar 4, 2006 at 12:37 AM
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JDL
  • ✓Experienced Mechanic
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Sorry for the late reply.

Use a gage and check proper fuel pressure. Yes, the filter and pressure regulator show to be mounted to fuel pump assemble. You can remove the filter without removing the pump, but, you still have to drop the tank. If your going to drop the tank, you might as well replace the pump and everything.

There many things that can cause stalling/rough idle, crank sensor--idle air control valve--throttle position sensor--vacuum leak--egr where applicable, just to name a few.

Can you check for applicable trouble codes? You may be able to get some codes by cycling your ignition switch. Turn key just till the dash lites come on, no further. cycle key on--off, on--off, on, then the mil on the dash starts flashing, you count the flashes to get the codes. Your looking for two digit codes.

I realize this is an old post. You may no longer own this vehicle. In the future hope you don't have any vehicle issues, but, if you do, keep the site in mind. They are always working to improve the site and it's free.

Have a good day.
Mar 29, 2015 at 6:29 AM

Suggested Repair

Check fuel pressure with a gauge. The filter and pressure regulator are on the pump assembly and require dropping the tank, so replace the pump and related parts if the tank is dropped. Also retrieve trouble codes and inspect the crankshaft position sensor, idle air control valve, throttle position sensor, vacuum leaks, and EGR if equipped.

Conversation Summary

The owner of a 1997 Jeep Grand Cherokee Limited reports a rough idle and stalling just before stops, especially uphill, after an idle air control cleaning and tune-up. They ask whether the in-tank fuel filter requires replacing the whole pump. The expert advises checking fuel pressure, notes that servicing the filter still requires dropping the tank, and suggests replacing the pump if the tank is dropped. They also recommend retrieving flash codes and checking the crank sensor, IAC, TPS, vacuum leaks, and EGR where applicable.

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