My Tahoe won’t start.

Asked by Ezzy02 Mar 17, 2021 at 03:42 PM about the 2007 Chevrolet Tahoe LS 4WD

Question type: Maintenance & Repair

My 2007 Chevy Tahoe 4x4 cranks but won’t start.
We bought new crankshaft installed it, still nothing.
Bought a new fuel pump still nothing. We bought
the engine computer because we came to find out
it had no current to the fuel pump. Bought an
engine computer already programmed and now it
wink crank. What could be wrong with it.

1 Answer
26,860

oilyspill answered 3 years ago

make sure battery has a full charge and connections all good. if it cranks good but won't start, have a helper crank it while you visually check for spark at the plugs. Use a gage and check proper fuel pressure. Check fuel injector pulse. Any applicable trouble codes. those are the basic checks, in my opinion. I haven't looked up info on your security system, where applicable.

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