I have an 03 Pontiac Grand Prix the 3

Tiny
ANONYMOUS
  • 2003 PONTIAC GRAND PRIX
  • 100,000 MILES

I have an 03 pontiac grand prix the 3.8L it will crank and idle fine but when I dive it it hits 2000rpm and boggs down what could be the problem? Thanks

Friday, January 4th, 2013 AT 5:45 PM

3 Replies

Tiny
HMAC300
  • EXPERT
  • 45,775 POSTS

Scan for codes check fuel pressure, check vacuum at intake at idle if 15" or belwo suspect clogged converter.

Was this
answer
helpful?
Yes
No
Friday, January 4th, 2013 AT 6:05 PM
Tiny
JDL
  • EXPERT
  • 16,281 POSTS

How long since over-all tune-up? Use a gage and check fuel pressure. Any applicable trouble codes. Some of the national brand autostores will check codes for free. If you want to check codes, yourself, you need an obd2 code reader. Your local autostore should have these?

Just a thought, it isn't a tranny issue? If you keep your foot out of it, does it drive ok?

Was this
answer
helpful?
Yes
No
Friday, January 4th, 2013 AT 6:09 PM
Tiny
JDL
  • EXPERT
  • 16,281 POSTS

Hello, hmac300 didn't see your post. Have a good day.

Was this
answer
helpful?
Yes
No
Friday, January 4th, 2013 AT 6:11 PM

Please login or register to post a reply.

Other Engine Low Power Questions