EGR VALVE

1999 Pontiac Grand Prix

Tiny

bigpimpin5o

March, 6, 2008 AT 11:37 AM

Engine Performance problem
1999 Pontiac Grand Prix 6 cyl Front Wheel Drive Automatic 119000 miles

ok I turn on my car sometimes and my car does not idle right the idle jumps around and then when I hit the gas then idle levels off and evrything is off. Sometimes the car is hard to start and ideling is rough.
My check engine light came on and code said egr valve stuck open.

FOUND 2035 RELATED QUESTIONS

Egr Valve

11 ANSWERS
9 IMAGES

5 Answers

Tiny

rasmataz

March, 6, 2008 AT 2:08 PM

Is this 3.1 or 3.8? When the EGR stays open due to carbon it dilutes the A/F mix causing it to idle erratically.

Tiny

bigpimpin5o

March, 7, 2008 AT 8:14 AM

You think I should change it cause I tried to clean it and I changed the gasket and still samne thing

Tiny

rhall77

March, 7, 2008 AT 1:17 PM

You can try to clean it with a small amount of carb cleaner, but I highly suggest replacing the egr valve.

Tiny

rasmataz

March, 7, 2008 AT 1:22 PM

When at idle and EGR disconnected does it idle okay-if you replace it and it continues-check the wiring and the PCM.

Tiny

Empirecrzy241

January, 18, 2010 AT 7:45 PM

I have the same problem with my car. Its a 2001 Pontiac Grand Prix GT. I disconnected the EGR after the car was started and it did not help anything. Does this still mean it could be the EGR?

Please login or register to post a reply.

Code Read Retrieval/Clear
 Step by Step video GMC Yukon XL 2000-2006
Code Read Retrieval/Clear - Dodge Stratus
Code Read Retrieval/Clear Mercedes Benz
Read Codes Like a Pro
Code Read Retrieval/Clear Honda Civic
How to gather codes Ford Explorer
Code Read Retrieval/Clear Chevrolet Camaro