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Well I replaced IAC valve and the car seems to run well enough for now. It has not dies in the last few weeks but a few times dips below 500rpms on startup. Thanks to all who helped out and sorry for the delayed update. Later this year I will look for either a vaccum leak or the TPS. But for now...

I seem to hear a hissing or compressed air sound when I use the accelerator. I think its just the fan belts need to have some wd40 treatment to them, but may be a vaccum leak. Is that a similar sound to a vaccum leak?? Does relate to the gasket just mentioned above? It's like -10 windshield...

Well the IAC has been changed out for a new one by the shop (just got it back tonight). The engine starts at about 1800 rpms and then goes down to about 100 for a split second and then up to about a constant 700 rpms when idling. The difference with the new IAC is that te truck does not stall...

I am not sure if it is prone to leaks, I have only owned it three weeks now. This problem became constant after about 4 days of ownership. I disconnected the IAC and started it up and it idled at about 100rpm, but did not die on me. I turned the truck off and reconnected it and the problem was...

I just read that Ford makes you buy the whole fuel pump assembly. Is this ture or can you just buy the regulator? Where?

So this (fuel pressure regulator) might be a cause even though I have no check engine light at all? So far no lights come on. If it was the IAC would it always idle rough or stall during use at all times (not just starting up)? This would be the third time to take it to the same shop, so I want...

Hello all. I am new to the site and I hope someone can help. I own a 2000 Explorer XLT V6 245 SOHC 4dr with 88,800 miles on it. I recently purchased this vehicle and love it so far but... When I start the car it turns over and idles up fine but when it idles down it stalls out shutting down the...