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The first thing to do is too take the EGR out of circuit. A quick and easy way to do this is to cut an old metal oil can(its thin enough for scissors) so you have a piece of the can that will fit between the bolts of the EGR. Tighten the EGR bolts up with the can acting as a gasket. Now try watching the MAF sensor voltage as you rev the engine sharply and ...


2

That sounds very much (no, it sounds exactly) like either of two things: either the brake fluid in the master cylinder is very low, or the master cylinder has failed. If anything else were the cause (caliper or wheel cylinder failure, line leakage), then you'd find brake fluid either on the ground or on the inboard surface of one of your tires.


2

This is a common issue. Sometimes the door actuator needs to be reset, as it gets confused. When I had this problem in my Avalanche, I found that turning the temperature all the way to the 90 degree max setting (when set to equal cooling for both sides), waiting a few seconds for the door to stop moving, and then turning the temp back down, would resolve the ...


1

If your truck needs an intake manifold gasket (actually you'll change both sides if you do), get this done and see if it solves your problems. Fix the things which you know need fixed. This may or may not solve your backfire issue, but at least you can go from there. Timing is the most conventional thought here, though. I believe the 99 still had the GENI ...


1

With the car off, go under the hood and look near your air filter housing. Follow the large hose that it is connected to until you see the throttle body. Try manually moving the throttle lever. This is what your gas peddle would do anyways. Also try using two people, one to be in the car pressing the gas peddle, and one to see it the lever rotates at all. ...



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