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I have a 2000 Tahoe limited it sit for about a year n a half and wouldn't start change the fuel pump and relay and still won't start

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  • Cars & Trucks Master
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If you have normal fuel pressure at the injector rail, have you checked for spark at the plugs and if the injectors are opening ?

Posted on May 07, 2013

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  • emillionones
    emillionones May 08, 2013

    It runs if you spray starter fluid n it

  • emillionones
    emillionones May 08, 2013

    It runs if you spray starter fluid n it and what would cause the injectors not to open

  •  Stephen
    Stephen May 08, 2013

    Either no power to the injectors, or no ground signal from the computer.

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mcgyver468
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SOURCE: fuel gauge bouncing on 2000 chevy tahoe where is fuel pump relay

fuel sending unit is in the tank. this is normal after about 75k miles and up. pump and sending unit are sold together. fuel sloshes from front to rear making the float on the sender rise and fall.

Posted on Apr 21, 2009

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Location of chevy tahoe fuel pump relay


didnt specify year of vehicle most relays for tahoe is under hood and at side of dash on drivers side -- turn key to on and listen for hum of pump no hum try starting with starter fluid if starts test for power to connections ,pump and relay if power more than likely pump shot

Apr 29, 2017 | 2003 Chevrolet Tahoe

1 Answer

2000 gmc jimmy starts in AM fine won't start after sitting in sun all day


Can you jumper the fuel pump and make it start and continue to run ?
Have you checked to see if you are getting spark when it won't start ?
Could be a relay or coil, ignition module, or other component.

Aug 08, 2012 | 2000 GMC Jimmy

1 Answer

I have 1986 Alfa Spider that won't start. Car has been sitting for a year. I replaced battery, fuel tank, fuel sender unit, both fuel pumps. I seems that the in tank pumps is not getting any po


Could be the main or fuel run relay located in the compartment under the luggage rack, passenger side, main relay also, fuse for the fuel relay 8amp. Electronic Control Unit is also located there.

Could be electrical, Hook up a timing light, three leads: Power, Ground, and one that goes around the wire to #1 cyl. Turn the engine over and see if there's firing. Note: u can check all 4 spark plugs this way.

Fuse lead goes to pin 30 of the fuel relay, u can jump 30 across to 57 and check for the pumps running, if not, change-I suggest both relays, main and fuel run relays. Both pumps get their 12v DC from the fuel run relay, both should be running when you switch ignition switch to on, then a tachymetric signal is fed from the coil to the relay to keep it running.

Jun 10, 2012 | 1986 Alfa Romeo Spider

1 Answer

03 Tahoe Z71 Flex Fuel won't start and run. Engine turns over, fires, but won't start. I can hear the fuel pump run but it is not a steady sound like I would normally hear. I am getting a P0


It wouldn't hurt to check fuel pressure with a fuel pressure gauge. you should see somewhere around 48 - 55 psi. the test port is on the fuel rail about in the middle of the rail and on the drivers side.

If the fuel fuel pressure is low it wouldn't hurt to make sure there is power to the fuel pump before condemning it. Power is supplied to the pump by the larger of the two grey wires.

The fuel pump is located in the fuel tank and the fuel tank will need to be dropped from the vehicle in order to service the fuel pump.

If you decide to replace the fuel pump get an a/c delco or a delphi pump. These are the best two option for your vehicle. Do not get an airtex brand. They are not reliable pumps although they are cheap.

Let me know if you have any questions and thank you for using fixya.com!

Feb 25, 2012 | 2003 Chevrolet Tahoe

1 Answer

I was given a 1994 s10 Chevy Tahoe vortex blazer


I was given a 1994 s10 Chevy Tahoe vortex blazer??????? It's either a S-10 pick-up or it's a Tahoe or a Blazer not all three . So which is it ?

Mar 11, 2017 | 1994 Chevrolet S-10 Blazer

1 Answer

Why won't my 98 tahoe start after it was sitting for a year? i bought a new battery so that is not it.


Did you put stablizer in the gas before storing it? Does the fuel pump run for 2 seconds when the ign is turned ? Have you checked the air cleaner for debris? Do you have spark? You must have air/fuel/spark to start.

Dec 15, 2011 | 1998 Chevrolet Tahoe

2 Answers

1999 tahoe, was running rough, I changed the plugs,that didn't help. Then for no reason it ran like new, then is was stalling and wouldn't rev up, Then it wouldn't start at all. I noticed no...


now that leg won't lite up and the fuel pump won't work ????? The PCM - engine computer supply's B+ voltage to control the fuel pump by energizing the relay .
GM Fuel Pump Relay Testing

Jun 05, 2017 | Chevrolet 1500 Cars & Trucks

1 Answer

Hello. My 1997 Chevy Tahoe refuses to start. The problems began with a bad fuel pump. I changed. It worked. The fuel pump died again. I changed it again and it has been working. I parked it for two weeks....


Now you have a good battery & a starter that turns over the motor

Have you cycled the key on & off with a fuel pressure gauge on the
fuel rail?

Do you have a fuel filter that isn't over 3 or 4 years old?

Have you checked for spark while cranking ? Use an old plug on the wires,
if you have ignition wires,don't ground the wire without resistance

If you removed the ducting & MAF Sensor it won't start

Tell us what you checked & exactly how that was done.

Jun 09, 2011 | 1997 Chevrolet Tahoe

1 Answer

I do not hear the fuel pump turn on when I turn on the ignition. The ignition is working but the truck will not start.


Check fuel pump relays and fuses. If all relays and fuses are good then change fuel pump.

Dec 28, 2009 | 2000 Chevrolet Tahoe

1 Answer

My 200 Tahoe stalled pulling into a parking spot


sounds like an Ignition control module,check for spark immediately after it dies.the spark should should be strong even up to a half of an inch gap

Oct 30, 2009 | 2000 Chevrolet Tahoe

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