this question is for a 99 silverado 4.3 engine,,,after moisture fouled the distributor cap, i replaced with new cap and rotor,,,now engine backfires on start and idles rough,,what can i check?

Asked by Mar 27, 2016 at 05:29 PM about the 1999 Chevrolet Silverado 1500 LS Standard Cab SB

Question type: Maintenance & Repair

moisture fouled out the distributor cap,,so i replaced. now engine backfires on
starting and idles rougher than before,,
what do i check now?

1 Answer

72,265

I'd suspect moisture still in the ignition system somewhere, moisture is good for pointing out bad components. Have someone turn it over and listen by the coil for a snapping sound. That would be the spark finding its way to ground.

Your Answer

Add photo

Related Questions

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 2,440
#2 Rowefast
Rowefast
Reputation 1,950
#3 tenspeed
tenspeed
Reputation 1,650
View All

Related Models For Sale

Used GMC Sierra 1500
769 Great Deals out of 68,175 listings starting at $1,700
Used Ford F-150
2,116 Great Deals out of 192,318 listings starting at $290
Used Dodge Ram 1500
402 Great Deals out of 10,916 listings starting at $1,000
Used Toyota Tundra
418 Great Deals out of 34,384 listings starting at $2,500
Used Toyota Tacoma
549 Great Deals out of 42,548 listings starting at $1,995
Used Chevrolet Tahoe
638 Great Deals out of 32,888 listings starting at $1,500
Used Chevrolet Camaro
357 Great Deals out of 31,259 listings starting at $2,500
Used Ford F-250 Super Duty
317 Great Deals out of 44,125 listings starting at $1,450
Used Chevrolet Silverado 2500
8 Great Deals out of 259 listings starting at $3,495
Used Ford Mustang
710 Great Deals out of 44,429 listings starting at $1,500

Used Cars For Sale

2017 Chevrolet Silverado 1500 For Sale
297 Great Deals out of 126,411 listings starting at $15,892
2016 Chevrolet Silverado 1500 For Sale
135 Great Deals out of 5,700 listings starting at $18,995
2015 Chevrolet Silverado 1500 For Sale
214 Great Deals out of 8,384 listings starting at $12,950
2014 Chevrolet Silverado 1500 For Sale
256 Great Deals out of 10,235 listings starting at $9,798
2013 Chevrolet Silverado 1500 For Sale
163 Great Deals out of 4,952 listings starting at $8,950

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.