2008 Pontiac Grand Prix base reduced engine mode

35

Asked by Bvandever Feb 11, 2021 at 11:33 AM about the 2008 Pontiac Grand Prix Base

Question type: Maintenance & Repair

I have a 2008 Pontiac Grand Prix base model
that I replaced the battery in and when I
started it back up it was in limp mode
(reduced engine power) I have replaced the
throttle body and foot pedal assembly and still
won’t come out out reduced power I’ve
trained the new pedal and deleted problem
code twice with no change it’s giving me
U0107 lost communication with throttle
actuator control module. Can anyone tell me
what part it is that’s causing that code to be
thrown? I’m pretty dumb founded at the
moment and I really need this car running
again cause I’m in Montana and it’s -31 today.
Also when I have the car started i will push the
throttle pedal and it’s like I’ve never touched
it, absolutely no response. Any help with be
greatly appreciated

2 Answers
18,715

munron answered 3 years ago

The problem could easily be in the grounds, wiring and electrical connections that connect all the components together. Before replacing any more parts go through the wiring itself and make sure all connections are clean and tight. This includes several different grounds and the battery connections. All these things start to deteriorate on older cars and can make the computer think components are failing when in fact the connections are failing. If you're not up to the task yourself, find a shop that is.

2 people found this helpful.
Mark helpful
35

Bvandever answered 3 years ago

Thank you for the information I will definitely try this when the weather gets a bit warmer cause working with plastic parts and pieces like wiring in such cold weather give you a higher chance of something else breaking from being bitter cold and brittle

Mark helpful

Your Answer:

Related Questions

  • 2008 Pontiac Grand Prix base reduced engine mode 2 Answers

    I have a 2008 Pontiac Grand Prix base model that I replaced the battery in and when I started it back up it was in limp mode (reduced engine power) I have replaced the throttle body and foot pedal...

    2008 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Reduced Engine Power 2008 Grand Prix 2 Answers

    I have a 2008 Grand Prix. for the last two weeks or so the reduced engine light has been signaling I can go as fast as I want but it takes a lot longer to speed up the RPM's don't go over 1500 and...

    2008 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • 2007 pontiac grand prix in reduce power engine mode 1 Answer

    I have a 2007 pontiac grand prix that went into reduce power mode with engine. Mechanic said that computer scan found an issue with the throttle body but they physically can't reproduce it. What does...

    2007 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Reduced Engine Power alert 2004 Pontiac Grand Prix GXP Supercharged 3 Answers

    I have this 2004 Pontiac Grand Prix GXP fully loaded 3.8 Supercharge and I just bought it last month (July). Well the first couple days of having it were FANTASTIC! However, the guy who sold me th...

    2004 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

  • Reduced engine power on a 2008 Grand Prix 86 Answers

    I have a 2008 Grand Prix, that worked great until last march when i put it in the ditch. it got all fixed from that. But just this past week i was driving it and it came up with REDUCED ENGINE POWER...

    2008 Pontiac Grand Prix Base

    -

    Maintenance & Repair

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 1 nationwide Grand Prix listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Pontiac Grand Prix Questions

CarGurus Experts

  • #1
    munron
    Reputation
    8,230
  • #2
    James Sparrow
    Reputation
    7,530
  • #3
    Dorian Hendricks
    Reputation
    6,190
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Pontiac G8
1 listing
Used Chevrolet Impala
6 Great Deals out of 94 listings starting at $3,495
Used Dodge Charger
39 Great Deals out of 725 listings starting at $5,995
Used Ford Mustang
58 Great Deals out of 1,366 listings starting at $4,995
Used Pontiac G6
12 listings
Used Chevrolet Corvette
27 Great Deals out of 1,082 listings starting at $15,000
Used Chevrolet Monte Carlo
5 listings starting at $9,449
Used Jeep Grand Cherokee
109 Great Deals out of 3,136 listings starting at $3,995
Used Chevrolet Silverado 1500
195 Great Deals out of 5,877 listings starting at $2,975

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.