I have a 99 tahoe 5.7 v8 and I change the spark plugs and change the oil, trans oil the gaskets the battery is good the starter and alt. it's gettin Fire but not starting wat can this be

10

Asked by Feb 05, 2015 at 04:48 PM about the 1999 Chevrolet Tahoe 4 Dr LT 4WD SUV

Question type: Maintenance & Repair

My battery drains and its trying to
start but it's not and I have gas in the
tank

19 Answers

41,255

If it's cranking over for ever and not firing, it sounds like your fuel pump is shot. Have someone turn the key to Accessory and see if you can hear the fuel pump hum. Take off the fuel cap and put your ear to the opening and see if you can hear it hum. You may want to check your fuse and relay also.

10

I check the fuses and relay they are good and when I turn the key I can hear the pump could this be my timing chain two pple came look at it and one say it's the fuel pump and the other said it's the timing chain don't want just keep buyin parts and it's not the problem

1 of 1 people found this helpful.
10

And it's firing it just don't won't start

41,255

I doubt it's the timing. If the timing chain broke, you never would have gotten it in the door yard. You would be dead on the road. Have you pulled a plug wire and checked for spark yet? The fuel line has a check valve next to engine.Looks like a tire stem. Have you made sure that you are getting fuel to the engine?

1 of 1 people found this helpful.
10

I think I'm not get fuel to the engine and yes it's gettin spark how do I get the fuel to the engine

10

It's like it want to start but it's not

41,255

If you find that you are not getting fuel to the engine, your fuel pump may be bad. Or you may have a bad fuel pressure regulator. Have you tried spaying anything into the throttle body and see if it tries to start?

41,255

Buy a cheap fuel pressure gauge and do this test: This way you will know for sure. https://www.youtube.com/watch?v=53w5v7CHpCQ

10

Sound like the front crank timing sensor on the front pulley. My sister in law's Tahoe (97) had that happen just out of the blue.

1 of 1 people found this helpful.
10

They have a crank shaft position sensor that's wat you talking about

10

I'm getting pressure I check it

41,255

Okay, so if you have good pressure that will rule out a bad fuel pump and regulator. You can try replacing the crank sensor like Timbo991 suggested and see if that works.

10

Ok thanks I'm bout to go get it now and another thing when it was running it was only ship in first and second but I know the transmission good can that be the crankshaft sensor

41,255

Not sure.

10

Or the tPs

41,255

The transmission usually shifts in accordance with the vehicles RPM's. A bad TPS could have an effect on shifting by sending bad data to the computer. Have you made sure the fluid level in the tranny was good?

1 of 1 people found this helpful.
10

Yup the level is good I will take the tps off and go have it tested

41,255

Just a thought...if your vehicle has a neutral safety switch, that may be bad causing your no start condition.

30

Check your wires to the distributor cap. They may have come unplugged

Your Answer

Tahoe

Looking for a Used Tahoe in your area?

CarGurus has 39,641 nationwide Tahoe listings starting at $1,000.

ZIP:

Chevrolet Tahoe Experts

  • #1
    Tom Demyan
    Reputation
    850
  • #2
    Rowefast
    Reputation
    830
  • #3
    Lucia Taylor
    Reputation
    560
View All

Related Models For Sale

Used GMC Yukon
407 Great Deals out of 21,587 listings starting at $1,495
Used Chevrolet Suburban
353 Great Deals out of 21,930 listings starting at $1,999
Used Cadillac Escalade
216 Great Deals out of 11,251 listings starting at $2,000
Used Chevrolet Silverado 1500
2,126 Great Deals out of 167,426 listings starting at $1,900
Used Ford Expedition
386 Great Deals out of 19,475 listings starting at $1,295
Used Ford Explorer
856 Great Deals out of 63,884 listings starting at $1,000
Used Ford F-150
2,324 Great Deals out of 184,534 listings starting at $699
Used Jeep Grand Cherokee
915 Great Deals out of 70,987 listings starting at $950
Used Toyota 4Runner
291 Great Deals out of 22,097 listings starting at $1,750
Used GMC Yukon XL
243 Great Deals out of 13,723 listings starting at $1,495
Used Dodge Durango
304 Great Deals out of 21,542 listings starting at $2,195
Used GMC Sierra 1500
887 Great Deals out of 65,680 listings starting at $1,995

Used Cars For Sale

2017 Chevrolet Tahoe For Sale
109 Great Deals out of 19,671 listings starting at $37,999
2016 Chevrolet Tahoe For Sale
47 Great Deals out of 1,783 listings starting at $31,643
2015 Chevrolet Tahoe For Sale
67 Great Deals out of 3,266 listings starting at $26,975
2014 Chevrolet Tahoe For Sale
20 Great Deals out of 674 listings starting at $11,595
2013 Chevrolet Tahoe For Sale
39 Great Deals out of 1,452 listings starting at $6,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.