2008 grande prix 3.8 no start, will crank, no codes

Asked by Cory May 16, 2018 at 10:59 PM about the 2008 Pontiac Grand Prix Base

Question type: Maintenance & Repair

2008 grande prix, shut down pulling into driveway
would not start after, it cranks and sounds normal.
checked fuel pump, pressure tested line(both
good). Checked codes and nothing cooming up.
Car ran normally up until this point. Gonna check
the plugs tommrow. Just wondering if anyone else
ran into a similar issue and if one of these systems
wasn’t running properly wouldn’t a code come up?  

2 Answers

Update: tested spark plugs, no spark. Pulled off ICM module and used this guide http://easyautodiagnostics.com/gm/3.8L/ignition- module-and-crank-sensor-test-3 No power going to icm, fuses and relays are all good

Update 2: cars working again, the ingnition control module was bad, took it off the car and tested the resistant of the three ingnition coils(all good) and then did the same to the icm, 2 of the icm packs read little to no resistance, the power loss to the icm was because of a burnt fuse I must of missed.

Your Answer:

CarGurus Experts

  • #1
    munron
    Reputation
    8,220
  • #2
    James Sparrow
    Reputation
    7,520
  • #3
    Dorian Hendricks
    Reputation
    6,170
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Corvette
29 Great Deals out of 1,060 listings starting at $15,871
Used Ford Mustang
65 Great Deals out of 1,259 listings starting at $4,995
Used Pontiac G6
21 listings
Used Chevrolet Impala
9 Great Deals out of 107 listings starting at $4,632
Used Dodge Charger
38 Great Deals out of 645 listings starting at $4,888
Used Chevrolet Monte Carlo
7 listings starting at $3,000
Used Pontiac G8
2 listings
Used Chrysler 300
34 Great Deals out of 516 listings starting at $4,999
Used Chevrolet Tahoe
24 Great Deals out of 911 listings starting at $11,900

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.