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1999 Pontiac Montana Repair Question


Topics covered: Egr valve, Fuel pump, Idle air control valve.
Mileage: No information provided.

Asked on April 28, 2012

99 turns off when you press on gas or start driving....

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
Avatar Asked by Mary78411

Answer

Replied on April 28, 2012

Is the check engine light coming On?

Tiny Answered by rasmataz
68 questions asked
Replied on April 28, 2012

no, no lights are on

Tiny Response from Mary78411
1 question asked
Replied on April 29, 2012

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

Tiny Answered by rasmataz
68 questions asked

Replied on April 29, 2012

haven't checked that but i will look into it. another question how do i know if the EGR valve is good

Tiny Response from Mary78411
1 question asked
Replied on April 29, 2012

EGR valve testing:http://www.youtube.com/watch?v=IIUFw2KR6rU

Tiny Answered by rasmataz
68 questions asked
Replied on April 29, 2012

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..

Tiny Response from Mary78411
1 question asked