I’m having an issue with my 93 Grand Cherokee with 193k miles. The RPMs will fluxuate and even drop to 0 at times and the whole Jeep with shudder and shake and then the RPMs will return back to normal. It could just drop down once, or several times in a row. I’ve even had it completely die a few ti…

Sorry guys. I clicked the post button and it looked like nothing happened. So I hit it again… still looked like nothing happened. Changed the title and hit it again and it tells me it’s been posted :confused: Most forums it takes you to your thread that you just created. Sorry for the spam >_<

Pull the fuel filter again. If there was a lot of crud in the tank, the new filter may be clogged. Is the “Check Engine” light on?

If this problem came from a fuel pressure issue (such as you might get from a clogged fuel filter), it would probably be ok at idle/low speed and get worse with load. Forgetting about the guy eyeballing the plugs and wires, how old are they? Idle/low speed dropping/surging is what happens if you h…

I feel for you. I have the same problem and I have replaced the crank sensor twice, and the engine computer. In the meantime my catalytic converter melted and I blew out the muffler backfiring because fuel was igniting int he wrong place. Still happening!!! I am desperate for a solution.

It is more likely to backfire if I give gas too soon when the problem occurs.

Also it is more likely to happen first thing in the morning when the engine is cold.

SpankN, your problem is typical of a fuel deliver or metering problem caused by insufficient fuel delivery or a vacuum leak. If I blew that much black crud out of the line filter, I’d be concerened about the sock filter on the end of the fuel pickup tube in the tank. It may be a good idea to look fu…

As far as the wires/plugs go I haven’t replaced them in the roughly four years I’ve had the Jeep. This is just a random problem that comes and goes along with its severity. Sometimes it will do it once, twice, and be done. Other times it’s so bad it’s nearly undrivable. Today I was driving it aroun…

Really? That too can cause your symptoms. And probably is. In my response I assumed you’d looked at the basics first. That’s what happens when I assume. That vehicle has an OBDI system. If you had an OBDII system you’d have a light for sure.

93 Grand Cherokee Shaking & Shuddering

Maintenance/Repairs

NanHam February 28, 2012, 5:46am 6

Mine is a 1997 Grand Cherokee Laredo. V6. Automatic.

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93 Grand Cherokee Shaking & Shuddering

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