93 grand prix spark issues. coil pack? module?

Asked by Mar 10, 2014 at 08:02 PM about the 1993 Pontiac Grand Prix

Question type: Maintenance & Repair

93 grand prix 3.1 engine. i suddenly lost spark to two cylinders both on the same coil
pack. i put a new coil pack on and still no output from the new coil. the other 4 cylinders
are running fine. i tried another new coil pack but still no spark. could the module fail on
only two cylinders? could the crank sensor fail on only the two dead cylinders allowing the
other 4 to run fine??  stumped.

1 Answer

10,245

Have you checked both spark plugs and both plug wires for that coil. The wasted spark system is a beast, if one fails you'll loose spark in both. If that isn't the issue then try the ICM. It won't be the crank sensor, it either fails completely or causes random weak sparking.

Your Answer

Add photo

Related Questions

  • 93 grand prix spark issues. coil pack? module? 1 answer

    93 grand prix 3.1 engine. i suddenly lost spark to two cylinders both on the same coil pack. i put a new coil pack on and still no output from the new coil. the other 4 cylinders are running fine. i...

    1993 Pontiac Grand Prix

    -

    Maintenance & Repair

  • 2006 grand prix 2 answers

    2006 grand prix still not starting changed crank sensor, coil pack module, map sensor, still nothing can somebody please help. Getting fuel just no spark.

    2006 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • Starting issues with my 2000 Grand Prix. 1 answer

    Ok so my grand prix seems to have quite a few problems. Lately I've noticed the mpg go from 23 to just 15 . Then the power steering pump was replaced and its sounds like its going bad again. Why ...

    2000 Pontiac Grand Prix GT

    -

    Maintenance & Repair

  • 2007 Pontiac Grand Prix starting issues 2 answers

    About a month ago my 2007 Pontiac Grand Prix would not start. After thinking it was the starter replaced that and still didn't start. Battery was badly corroded so I cleaned the terminals and put a...

    2007 Pontiac Grand Prix Base

    -

    Maintenance & Repair

  • 02 Pontiac Grand Prix Supercharged starting issues

    My Pontiact Grand Prix GTP will start up everytime after sitting for awhile but if you cut it off and try to start it it will turn but wont crank... If I put starting fluid in it it will start up ...

    2002 Pontiac Grand Prix GTP

    -

    Maintenance & Repair

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
590 Great Deals out of 34,066 listings starting at $899
Used Pontiac Bonneville
4 Great Deals out of 511 listings starting at $1,799
Used Pontiac Grand Am
1,183 listings starting at $1,599
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Honda Accord
947 Great Deals out of 77,739 listings starting at $899
Used Nissan Maxima
323 Great Deals out of 24,381 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
1,153 Great Deals out of 79,677 listings starting at $500

Used Cars For Sale

2008 Pontiac Grand Prix For Sale
18 Great Deals out of 431 listings starting at $1,995
2007 Pontiac Grand Prix For Sale
3 Great Deals out of 397 listings starting at $4,299
2006 Pontiac Grand Prix For Sale
6 Great Deals out of 462 listings starting at $1,600
2005 Pontiac Grand Prix For Sale
330 listings starting at $1,800

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.