Car will not start 2008 Pontiac Grand Prix V6 135,000 miles

Asked by Jul 11, 2016 at 08:26 PM about the 2008 Pontiac Grand Prix Base

Question type: Maintenance & Repair

Saturday Mechanic Needs advice please
Coolant was leaking into unknown area of engine, no white exhaust, no milky oil. Replaced about 2 quarts of water every 4 days or so. Removed and replaced Lower and Upper (plenum) gaskets. Installed new thermostat, refilled with new Dex-coolant, bled system. Engine ran fine for several days. No coolant leaks. Then Engine light came on and codes P2138 and P1125 appeared on code scanner. Seems to direct to Throttle Position sensor. I am concerned that wires (harness) to TPS might have become frayed while wrestling to remove and replace both manifolds. At any rate, car just died at intersection. Battery is good, lights, horn etc. But no activity from starter. Any thoughts are appreciated.

4 Answers

209,815

You said the wiring harness frayed, so you might have a short to ground.

I said Might be frayed. Not able to see thru harness or connector.

3,495

Then its highly unlikely its frayed. I would look for a bad connection somewhere and follow up on your trouble codes.

2 out of 2 people think this is helpful.

Checked codes once more after stall and no crank no start condition: P0068, P0113, P0102, P1125, P2125, P2138, P0068 and P0106.

Your Answer

Add photo

Related Questions

  • 2008 Pontiac grand Prix 2 answers

    SO I HAVE A 2008 grand Prix with a 3.8 engine, miles are averaged around 160+ . I'm trying to figure out whether the car transmission is bad! It was running great an then all a sudden the car won'...

    2008 Pontiac Grand Prix

    -

    Maintenance & Repair

  • i purchased a 2008 pontiac grand prix two weeks ago. it has 16,000. miles 10 answers

    I do not understand why it is only getting about 14 mpg. i take off slow, drive under the speed limit. Is it possible that there is something wrong with it. IT is a certified vehicle. i am thinking ab...

    2008 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Reduced engine power on a 2008 Grand Prix 74 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

  • What is the max milage that a Grand Prix can get? 44 answers

    My grand prix is a 99 and it has 119,000 miles on it. How much longer can it go?

    1999 Pontiac Grand Prix 4 Dr GT Sedan

    -

    Maintenance & Repair

  • Should I buy 1997 Pontiac Grand Prix SE, 3800 V6, with 161,000 miles on it for $2000? 5 answers

    Should I buy 1997 Pontiac Grand Prix SE, 3800 V6, with 161,000 miles on it for $2000? After how many miles, engine may have any problems?? or What is the life of 3800 V6 engine? thanks for your reply.

    1997 Pontiac Grand Prix 4 Dr SE Sedan

    -

    Shopping & Pricing

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 3,751 nationwide Grand Prix listings starting at $1,995.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 3,770
#2 Tom Demyan
Tom Demyan
Reputation 2,510
#3 munron
munron
Reputation 2,010
View All

Related Models For Sale

Used Chevrolet Impala
920 Great Deals out of 36,054 listings starting at $1,500
Used Pontiac G8
21 Great Deals out of 405 listings starting at $5,000
Used Dodge Charger
551 Great Deals out of 28,582 listings starting at $2,275
Used Pontiac G6
141 Great Deals out of 4,883 listings starting at $999
Used Chevrolet Monte Carlo
17 Great Deals out of 1,730 listings starting at $1,695
Used Chevrolet Malibu
1,114 Great Deals out of 78,201 listings starting at $2,495
Used Chrysler 300
515 Great Deals out of 20,476 listings starting at $1,500
Used Ford Mustang
726 Great Deals out of 38,165 listings starting at $1,750
Used Nissan Maxima
425 Great Deals out of 24,977 listings starting at $1,500
Used Jeep Grand Cherokee
1,089 Great Deals out of 69,713 listings starting at $495
Used Dodge Challenger
424 Great Deals out of 24,978 listings starting at $7,980

Used Cars For Sale

2008 Pontiac Grand Prix Base For Sale
13 Great Deals out of 416 listings starting at $1,995