Engine problems

Asked by Feb 20, 2016 at 12:16 PM about the 1999 Chevrolet Silverado 1500 STD Standard Cab LB

Question type: Maintenance & Repair

I have a 99 chevy silverado 1500 2wd v6 its not
starting. I have changed spark plugs, fuel pump,
fuel filter, fuel pump relay, distributor cap, Ignition
coil pack, & battery. Please i need help only vehicle
that i have.

12 Answers

82,085

First off you need to know if there is spark. If not it going to be in the Ignition Control Module since you have replaced everything else. If you have spark then it is a fuel issue and chances are the injectors, spider lines, and regulator would have to be replaced, since you have replaced the fuel pump.

82,085

You replace the rotor right?

Yes

121,085

Just a side note. Is it a vortex motor? If so have you ever sprayed starting fluid in the intake? If so you might have blown the plastic intake. These motor have spider injectors like the previous post mentioned and starter fluid will ruin them and the intake. Never spray anything in these style intakes.

82,085

Good note.

1 people found this helpful.
82,085

Good note and yes it would be a Vortec motor.

82,085

Any questions there Jim?

Nope that helps out alot thank you

Its a v6 engine but not a vortex

82,085

Out of curiosity, what make you say it is not a Vortec motor? Is it the 4.3L? And is it Sequential Multi-port fuel injection?

82,085

Because GM started putting the Vortec motor in trucks in 1996 and on up.

Have you checked the starter? Get a buddy or parts place to run a diagnostic for free. It usually gives a long list of possibilities but there is a way of narrowing it down a bit. Good luck. When you find out your problem please share. I have a'92 V6 Silverado. Bought it used about 17 years ago it's been one awesome machine.

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