High Pitch Squeak When Accelerating Over 2000rpm on Pontiac Grand Prix SE 2002 3.1L

Asked by Jan 28, 2016 at 10:43 PM about the 2002 Pontiac Grand Prix SE

Question type: Maintenance & Repair

Hello, my Pontiac Grand Prix SE 2002 3.1 squeaks (high pitch) really bad when
I accelerate above 2000 RPM, if you leave the gas pressed, it keeps doing it
and it doesn't go away, it only goes away when I don't step on the gas pedal.
The noise comes from the driver side, apparently from the throttle body
section. I attach photo of where it's exactly coming from.

The water pump, belt tensioner and belt got recently replaced.

Does anybody know what is going on?

Thank you

1 Answer


I'd check the big air intake hose first. Make sure it's securely attached to the throttle body. Check that hard plastic hose that plugs into the air intake hose (PCV System fresh air intake hose). The round metal "can" looking thing at the top right of the circled area with GM 12564563 on top of it is the EGR (Exhaust Gas Recirculation) valve. It may be sucking air due to a bad mounting gasket. Lastly, inspect the vacuum hoses in that area. Make sure none are damaged or disconnected. HTH. -Jim

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Reputation 3,980
#2 Tom Demyan
Tom Demyan
Reputation 2,660
#3 munron
Reputation 2,070
View All

Related Models For Sale

Used Chevrolet Impala
799 Great Deals out of 34,708 listings starting at $799
Used Pontiac Bonneville
6 Great Deals out of 674 listings starting at $1,599
Used Chevrolet Monte Carlo
12 Great Deals out of 1,692 listings starting at $2,300
Used Pontiac Grand Am
1,665 listings starting at $1,995
Used Chevrolet Malibu
1,081 Great Deals out of 85,119 listings starting at $1,995
Used Chevrolet Camaro
309 Great Deals out of 38,867 listings starting at $1,250
Used Jeep Grand Cherokee
890 Great Deals out of 69,215 listings starting at $1,300
Used Ford Mustang
399 Great Deals out of 44,403 listings starting at $1,000
Used Honda Accord
888 Great Deals out of 82,090 listings starting at $999
Used Nissan Maxima
359 Great Deals out of 25,313 listings starting at $1,400

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
14 Great Deals out of 472 listings starting at $1,200
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 536 listings starting at $2,000
2006 Pontiac Grand Prix For Sale
8 Great Deals out of 633 listings starting at $1,999
2005 Pontiac Grand Prix For Sale
438 listings starting at $5,900