Question about 1999 Chevrolet Tahoe

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Headlights switch I have 1999 Chevy Tahoe z71 and I turn my headlights on and the brights only come on, then my switch almost within seconds starts melting, so I replaced switch and relays and exact same thing, what do I look for next? Thank u james

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There is excessive current flowing through the switch . It means that the wire after the switch is shorting out or the full current to the headlights is flowing through the switch and not through the relay. Check the wiring positions of the relays.

Posted on Oct 13, 2013


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Posted on Jan 02, 2017

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SOURCE: engine stalling on a 2002 chevy tahoe z71

DO some quick checks : fuel filter , fuel injectors (when was the last time you serviced the fuel injectors?) and last fuel pump ,hope this helps AJ

Posted on Jun 08, 2008

  • 1118 Answers

SOURCE: fuel pump replacement 1999 chevy tahoe

That has alot to do with the price of the pump, i know there expensive. The thing to do is call an auto parts store and ask what the price is for a pump, once you know that, then you can call around to shops in your area and get there price or labor rates, and that will give you an idea what it will cost. I know its alot of calling but its the best way, so you can guard aginst being riped off. It should not take a good michanic more than 2 to 3 hours to chg. one.

Posted on Feb 05, 2009

  • 2 Answers

SOURCE: Fuel pump and electrical

its very likley that your fuse is blown. If you look it should be something like injectors a+b

Posted on Mar 06, 2009

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SOURCE: transmission solenoid location on a 1999 chevy Z71

there's more than 1 and they are all inside the pan and in the valvebody be careful messing with this stuff it could become very costly very fast. good luck

Posted on Jul 06, 2009

  • 20 Answers

SOURCE: 02 chevy Z71 suburban 5.3ltr doesn't start first turn of the key

Unfortunately, this problem could be caused by a number of things. A fuel pressure regulator is not usually one of them. The fuel pressure regulator will help to, essentially, regulate and change the pressure of the fuel in the fuel rail as the engine RPMs change. This change is usually minor, however, and will not interfere with the initial startup of the vehicle. I can give you a few basic ideas of where to look, I have seen this same problem on other 5.3L motors, but I have also seen it on many other cars as well, and the problems never seem to be consistent. If the truck has had a fresh tune up, and the filters have all been changed (most notably, the fuel filter) then the first thing to look at is going to be the throttle body. On the intake, there is a butterfly valve- if this is all gummed up with carbon or other deposits, clean it! (Note, it is best to wipe down well with a clean cloth, be as gentle as possible. Hold the butterfly valve open by hand or have a friend hold the gas pedal down (with the truck off, of course), and wipe this down thoroughly. You will have to take off the air cleaner and tubing first, in order to reach this. If this doesn't help, you could have a vacuum leak. You could have a bad Throttle Position Sensor, or a bad Mass Air Flow sensor. If your fuel return line is clogged or vapor locked, it will make it harder to start the vehicle. If the fuel pump is putting out sufficient pressure, but not the intial sufficient volume you need, that could also be a problem. There are a LOT of things that could cause this realistically, but the best thing to do is to eliminate the easiest problems one by one. Keep up on the maintenance, routinely check your filters and spark plugs, and DO NOT use cheapo parts. If you determine that it is not a simple failure, or are not comfortable with testing fuel pressure or volume output, checking the intake manifolds for minor vacuum leaks, etc. it may be best to take it to a professional who is trained to do that. Look for a shop in your area with a good reputation, as this isn't just a routine problem, and will take good diagnostic abilities and a skilled technician to fix it.

Thanks for asking!

Posted on Nov 07, 2009

Testimonial: "Thank You for your help I was hopeful it was simple seeing that it always starts second try when cold & when warm it starts on first Try."

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