2006 Grand Prix GT loses all electrical and the engine randomly shuts off

20

Asked by Oct 31, 2013 at 11:53 PM about the Pontiac Grand Prix

Question type: Maintenance & Repair

I have a 2006 Pontiac Grand Prix GT with 85,000 miles, 3.8 TC. For the last two months the car sometimes loses all electrical and the engine shuts off as if you removed the battery. The main ground to the motor has good continuity. This has happened at idle, low and high speeds. Recently the car had no power and I had to unlock it manually. It will start right back up, and I will not have a problem for a day or a week. The battery is good in the car and not codes are showing. The only constant that has been seen by me or my wife is that when it is having an "episode" the cruise control will not work.

7 Answers

5,700

sounds to me like your emc is going to hell. Plus check the body grounds and the positive cable connection

1 of 1 people found this helpful.
5,700

Try this first take the nagative cable off and make sure all connections are clean and conectected good that includes your positife conetions all so. also is the bat light or gauge showing any thing?

1 of 1 people found this helpful.
20

Where are all the body grounds located at? Maybe I missed one. Also, I have already removed and cleaned the positive battery terminal.

1 of 1 people found this helpful.
5,700

ussaly on the fire wall or the iner fender well or the frame

111,045

I agree with checking and cleaning all battery connections. Make sure they are all tight. Also make sure that the negative connections on the frame and motor are also clean and tight. Inspect all cable ends for signs of fraying.

20

Here is the follow up to the car since I THINK it is fixed. I checked over the main grounds again with a multi-meter and gave them a good pull. The lug that is attached to the chassis ground under the battery was a little corroded. I unbolted the ground and the car lost all power. I then cleaned the lug real well and sanded all the paint off on the fender wall where the lug attaches. After rebolting the ground I used some touch up paint for the bare metal. Yes, the lug was bolted on top of a painted surface. So far, so good. Thanks again for the advice.

1 of 1 people found this helpful.
30

sweet im gonna try that to then..my 2006 is doing same thing frustrating

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,863 nationwide Grand Prix listings starting at $1,600.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,270
#2 Tom Demyan
Tom Demyan
Reputation 2,870
#3 munron
munron
Reputation 2,210
View All

Related Models For Sale

Used Chevrolet Impala
591 Great Deals out of 34,068 listings starting at $899
Used Pontiac G8
14 Great Deals out of 379 listings starting at $5,800
Used Dodge Charger
452 Great Deals out of 29,324 listings starting at $2,300
Used Pontiac G6
91 Great Deals out of 4,082 listings starting at $1,650
Used Pontiac Bonneville
4 Great Deals out of 511 listings starting at $1,799
Used Chevrolet Monte Carlo
20 Great Deals out of 1,419 listings starting at $1,995
Used Pontiac Grand Am
1,183 listings starting at $1,599
Used Ford Mustang
541 Great Deals out of 45,846 listings starting at $1,999
Used Pontiac GTO
4 Great Deals out of 465 listings starting at $6,000
Used Chevrolet Malibu
1,060 Great Deals out of 77,910 listings starting at $1,500
Used Honda Accord
948 Great Deals out of 77,757 listings starting at $899
Used Nissan Maxima
321 Great Deals out of 24,382 listings starting at $999
Used Chevrolet Camaro
243 Great Deals out of 31,194 listings starting at $369
Used Pontiac Firebird
4 Great Deals out of 768 listings starting at $1,791
Used Nissan Altima
1,147 Great Deals out of 79,679 listings starting at $500

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.