Bad intermittent idle and killing ignition module s

Asked by Nov 15, 2016 at 09:47 AM about the 1993 Chevrolet S-10

Question type: Maintenance & Repair

I have replaced every sensor on the w code engine
and rebuilt the distributor replaced coil and cap
and rotor wires and plugs. Sometimes it starts and
runs fine other times it runs rough and dies, after 2
or 3 times cutting out its runs great. On top of all
that it seems to be killing ignition control module s
now. Runs great for 2 weeks then turn it off and
then NO spark! It's driving me nuts! Any ideas? S10
4 x4 93 w code cpi

4 Answers


If the ignition system is working properly and everything is fine with it, check the the delivery system. A bad fuel pump, restricted lines, or improper voltage to the fuel pump module could cause the rough idle and stalling on acceleration


fuel delivery system, my bad

Forgot to mention, it has a new delco spider injection system pump relay s and filters too. Pressure is around 60 psi regardless if it runs fine or stumbles and dies

Maybe I have a overcharging alternator causing ignition problems, will put another module in then test the system. Could be my control module problem?

Your Answer


Looking for a Used S-10 in your area?

CarGurus has 11 nationwide S-10 listings starting at $7,995.

Postal Code:

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
  • #2
    John Saffrahn
  • #3
View All

Related Models For Sale

Used Ford Ranger
49 Great Deals out of 330 listings starting at $3,495
Used GMC Sonoma
6 listings starting at $6,950
Used Ford F-150
521 Great Deals out of 9,917 listings starting at $3,490
Used Dodge Dakota
4 Great Deals out of 119 listings starting at $1,995
Used Chevrolet Blazer
17 listings starting at $3,295
Used GMC Sierra 1500
167 Great Deals out of 12,028 listings starting at $1,775
Used Dodge Ram 1500
50 Great Deals out of 484 listings starting at $2,495
Used Chevrolet Camaro
1,066 listings starting at $12,995

Used Cars For Sale

2003 Chevrolet S-10 For Sale
4 listings starting at $7,995

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.