Question about 1997 Chevrolet Tahoe
That's a tricky one, tell him before fitting anything else check the fuel pump is getting the correct amount of power, you will need an amp meter, if it is getting to much power or any wires in the system are faulty then it will either over charge or under charge. and more notably it could be very dangerous if any wires are contacting the car body, check around the exhaust and ensure no wires are touching and look for signs of melted wires.
I would also wonder if the fuel is contaminated, drain the tank if you suspect any corrosion in the fuel or bad fuel. Also when changing the fuel filter you must ensure that the filter is drenched in fuel or this will cause air locks in the system did your son completely cover the new filter in fuel?
Lastly as you say the new one is not working or will not turn on, check the rear of the fuse box where the wires come in from the car, again look for melted wires and fuses etc.
The fuel system will need to be at the correct pressure to work properly if there are any leaks in the system at all then it could cause a lot of hassle. so check the fuel lines as well, and one more thing the fuel tank, they can sometimes corrode forcing air in the fuel and then the pressure drops, look around the top of the tank and if any fuel lines run over the top of it where you cannot see then you may need to pull the tank down to investigate.
I hope this helps it seems he has changed everything poor lad, good luck
Posted on Feb 08, 2010
Really the problem is more of electrical and to be sincere with you all necessary to be replaced has been replaced but I will just advice that you take the car in for a scan which will likely reveal some codes that are error codes and with corresponding meaning that will as a matter of fact lead you to the cause of the problem.
Also, following your car history of having to replace fuel pumps about four times simply indicates that there are electrical malfunctioning that is causing the fuel pump to loose pressure/ power.
See an expert in your location or just visit an accredited service centre.
Good luck and thanks for using Fixya.
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Posted on Feb 07, 2010
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Posted on Jan 02, 2017
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