i did a tune up on my jimmy. put new plugs wires and cap truck is running rough.

20

Asked by crazylegs Sep 08, 2012 at 05:30 PM about the 1994 GMC Jimmy 4 Dr SLT 4WD SUV

Question type: Maintenance & Repair

it ran better before the tune up. any ideas whatts causeing the rough idel

8 Answers

69,815

Check the wires its easy to accidentally cross them

1 people found this helpful.
Best Answer Mark helpful
69,815

I'm assuming its a 4.3L The numbers represent the cylinders on each side Passengers side. Driver side 6 5 4. 3 2. 1 Front The distributor being looked at from the front going in a clockwise rotation is numbered 165432 4 5 3 6 2 1

20

sorry to bother you john. heres my e-mail add. baileywilliam87@yahoo.com. thanks again.

69,815

So glad hitting enter didn't paragraph the stuff give me about 20 mins gotta find thebook with the pic

61,205

the 4.3's can be picky with plugs. Best with ACDelco. Did you gap the plugs?

1 people found this helpful.
265

Also try resetting the ecm by either pulling the ECM fuse or disconnecting the battery for 15 mins . Then once hooked back up the ECM will re-adjust the timing etc. according to the new parts performance.

3 people found this helpful.

Your Answer:

Jimmy

Looking for a Used Jimmy in your area?

CarGurus has 2 nationwide Jimmy listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    710
  • #2
    Gene Arnett
    Reputation
    530
  • #3
    Fishinmatt99
    Reputation
    510
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Blazer
19 Great Deals out of 872 listings starting at $19,499
Used Ford F-150
321 Great Deals out of 14,968 listings starting at $1,712
Used GMC Sierra 1500
148 Great Deals out of 7,258 listings starting at $3,950

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.