Question about 1993 Mercury Villager

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Car stumbles, backfires until warm

My 1993 Mercury Villager starts fine and will idle at about 900 rpm, but when you push the accelerator it will stumble, backfire, etc. until warm. Initially, it was intermittent and has progressively gotten worse. It would go for weeks without a problem, but now it occurs for almost all starts. If you try to drive the car when it is stumbling, you have to floor the accelerator and the car will very slowly build up speed and be seemingly ok until you ease off the accelerator. Then the stumbling and backfires continue.

I have changed plugs, plug wires, distributor cap, rotor, vacuum hoses. My thinking is the EGR valve or the camshaft position sensor. I tried to get the EGR valve off, but can not get to it with the tools I
have.

Any suggestions?

TIA

Bob

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You need to replace your distributor. There has been many problems with these. I had the same problem with my 1993 villager and had tried many different things and none worked. I went to a junk yard and got a used distributor and now it runs fine. I would try this before anything alse.

Posted on Jun 06, 2009

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