rough running

245

Asked by Sonnyone May 31, 2014 at 05:30 PM about the 2000 Chevrolet Silverado 1500 LS 4WD

Question type: Maintenance & Repair

put in ngk TR51x spark plugs iridium under my hood it says gap is .060 these plugs were gapped at . 040 i was told to leave them gapped at .040 . should i have changed the gap to .060 ? any help would be appreciated

10 Answers

199,795

They say according to the type of plug there is a gap difference. One type is .060 and the other is .040. Your gap is probably not your issue. Did all you plug wire snap on tight? Did you replace plug wires too? If so are they in correct order? Could you have accidentally unplugged something while changing them.

7 people found this helpful.
199,795

Platinum plugs are gapped at .060 (oem). Iridium plugs are an upgrade and should be gapped at .040.

15 people found this helpful.
245

went and bought new wires according to the coil number. started up truck ran great. stopped to pick up some items truck ran rough. will be getting ac delco plugs tomorrow. i appreciate both of you people for helping will let u know how it goes. whay would be the best spark plug to use

5 people found this helpful.
245

i bought new wires according to the number on my coils what plugs do you want me to try and also on the shroud it says .060 gap what gap do i use

4 people found this helpful.
245

plugs originally were autolite app605 at .060 should i order them or get iridium and use gap of .040

7 people found this helpful.
245

put in autolite wires and ac double plainium plugs. truck ran great shut it off after a run and it ran rough. let it sit overnite started great did my erran 25 miles away started truck again ran rough no power???????

3 people found this helpful.
245

will try the sea foam today and check the fuel lines thank you

2 people found this helpful.
245

hi sorry it has been soooooo long in follow up tried a can a week of sea foam and it cleared the injectors right up you could actually feel when something went through. if anyone is having issues like i did go the sea foam route short money worth the shot tennisshoes very helpful cudos

2 people found this helpful.
50

The .060 gap gas been corrected in a bulletin to .040. The AC DELCO double platinum plugs come .045 and should not be changed, just checked before installing. https://www.youtube.com/user/How2Auto

5 people found this helpful.

Your Answer:

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 7,903 nationwide Silverado 1500 listings starting at $3,000.

Postal Code:

CarGurus Experts

  • #1
    Rowefast
    Reputation
    10,400
  • #2
    John Carson
    Reputation
    9,570
  • #3
    Andrew Olsen
    Reputation
    9,440
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 1500
123 Great Deals out of 8,182 listings starting at $3,000
Used Ford F-150
315 Great Deals out of 13,805 listings starting at $4,500
Used Chevrolet Silverado 2500HD
31 Great Deals out of 1,683 listings starting at $3,000
Used Toyota Tundra
40 Great Deals out of 977 listings starting at $10,698
Used Dodge RAM 1500
89 listings starting at $2,500
Used Toyota Tacoma
44 Great Deals out of 740 listings starting at $9,975
Used Chevrolet Tahoe
12 Great Deals out of 807 listings starting at $9,980
Used GMC Sierra 2500HD
29 Great Deals out of 2,202 listings starting at $3,000
Used Chevrolet Camaro
16 Great Deals out of 467 listings starting at $10,995
Used Ford F-250 Super Duty
30 Great Deals out of 797 listings starting at $2,890
Used Ford Mustang
38 Great Deals out of 1,626 listings starting at $8,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.