'91 Explorer XLT Stalling Out

Dan, I just had a similar problem on my '92. It didn't stall but idled rough. First make sure that on the little manifold that is at the left rear of the engine that all the ports have either a vacuum line attached or a cap to seal off a port that is not being used. If all that is OK pull out the thicker vacuum line that goes to the power brake booster. That is the round can that is mounted on the firewall.. Pull that big hose out of the booster and close of the end with your hand. See if that makes a difference. What happened to me was that the grommet on the booster had deteriorated and leaked. Replacement can be got at local parts store.

Charlie

Good suggestion, I will check it out. The other thing that I noticed was that there was what looked like a cap to a vacuum line on the ground, I put it to the side as I still cannot find where it came from, as it probably tumbled off somewhere.

I found that the easiest way was to remove the passenger side inner fender (plastic) to get to the rear plug. All the rest are relatively easy.

John Normile

On Wed, 27 Jul 2005 19:15:11 -0700, Dan J wrote: (Snip)

Rear Plug on the Left side? Do you have an approximate location or a par t that I could reference?

Dan In your post you asked about possible problems changing spark plugs. My reply was in refreence to this question. John

When you did this, did you have A/C?

YES