Question about 1993 Chevrolet Suburban

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My car wont hold once gas is applied

Recently i replaced a new feul pump, ejectors, distributer cap and plugs, fuel filter. T he truck will start but die once gas is applied. My next advice i to change the fuel sensor or the cumputer in the truck please help me.

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I would look at both the throttle position sensor (TPS) and the Idle Air Control valve (IACV) associated with the throttle body. Determine that these are both functioning as they should before moving on with the search.

Posted on Jun 07, 2010


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I have a 1992 mazda 323 it starts after a while it dies i changed the fuel pump there was some white stuff in gas tank changed the fuel filter changed plugs wires distributer cap rotor checked MAS che

I'm glad you figured it out. However, the "white stuff in the tank" sounds like somebody might have put sugar in your gas tank. You should probably pull the tank down, drain it, and clean it out real good. Otherwise, you are likely to be taking your fuel rails and injectors apart again.

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1. Take the air cleaner off and spray starting fluid in the intake for about two seconds.
2. Attempt to start the vehicle. If it runs on the starting fluid, you have a gas problem, if it doesn't, its spark.
3. Once you have determined which it is, you can repost for more specific information.
4. If its a gas problem, make sure it has good gas (fuel gage may have quit). When you go on the key, you should be able to hear the whining of the fuel pump cycle on, then stop. Have a helper go on the key, while you listen for the whine of the pump underneath. You should be able to locate the fuel pump and hear it if it is working. If the fuel pump is working, try changing the fuel filter.
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real comon starting problem for these is moisture in the cap and rotor and plug wires. replace cap, rotor, and wires. while you have the cap and rotor off check the two vent holles in the base of the distributer to see if the screens are plugged. be careful with the srews that hold the cap on the distibuters are plastic and will break.

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