99 TURNS OFF WHEN YOU PRESS ON GAS OR START DRIVING....

1999 Pontiac Montana

Tiny

Mary78411

April, 28, 2012 AT 11:42 PM

I have a 99 Pontiac Montana and it turns off at idle. Just yesterday it lasted about 15min running fine. I have changed the spark plugs, wires, coil pack, TPS, fuel pump, and the fuel filter. At first it would fill like it was miss firing but after putting the fuel pump it felt like new. The following day I turned it on and once I would press the gas it would turn off not sure on what else I can check or do. Plz help

5 Answers

Tiny

rasmataz

April, 28, 2012 AT 11:54 PM

Is the check engine light coming On?

Tiny

Mary78411

April, 28, 2012 AT 11:56 PM

No, no lights are on

Tiny

rasmataz

April, 29, 2012 AT 12:01 AM

Clean/Test the idle air control valve and EGR valve if okay-check the MAP sensor-

Tiny

Mary78411

April, 29, 2012 AT 12:06 AM

Haven't checked that but I will look into it. Another question how do I know if the EGR valve is good

Tiny

Mary78411

April, 29, 2012 AT 12:38 AM

My husband said that we have put a new idle air control valve also and his father looked at the EGR value said it looked good but wasnt tested. Is there a place I can take it to for checking on the EGR vaule.

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