1995 tahoe backfires with headlights on


Asked by Jan 25, 2016 at 05:21 PM about the 1995 Chevrolet Tahoe 4 Dr LS 4WD SUV

Question type: Maintenance & Repair

I have a 1995 tahoe 350 tbi with 280k miles. I just replaced
the coil, pickup coil, icm, cap, rotor, plugs wires and plugs.
And now it starts and runs fine until I turn my headlights on.
Then it stumbles and backfires but only when driving. it
won't do it at idle. Sometimes it will even stall out. I've
checked all my grounds that I could find and checked
alternator and everything seems to be in order. I've noticed
when I turn the head lights on my volt gauge on the dash
drops from 14 to 12 but alternator is still pushing 14. Now
I'm at a dead end so someone please help :(

6 Answers


Plus my tach has been jumping around alot lately I noticed also

1 out of 1 people think this is helpful.

Congrats on the 280,000 miles, that's an achievement. This vehicle owes you nothing. If it's in great physical shape, it's probably worth fixing and you obviously have an electrical problem. If you cannot solve this, take it to a professional. The fact that you have almost 300,000 miles on the original engine and transmission says a lot about the integrity of these cars and the way you maintained it.


Im really hurting on money right now so I'd like to try and figure it out myself if possible. Just don't have any idea where to begin :/

1 out of 1 people think this is helpful.

Definitely sounds like an alternator problem. Although I've never seen one do what you're describing. Put the alternator under load without the headlights. Turn on the rear defogger, which draws about as much power as the headlights, and the defroster on high blower at the same time. But leave the headlights off. See if it acts up. If not it's a problem with the headlights. If so, it's a problem with the alternator or possibly the battery connections. That'd be my best guess. HTH. -Jim


It didn't do it wile the defroster and blower were on. Does the headlights have a ground somewhere between the switch on the dash and the headlights somewhere that could be causing this? I was thinking about adding a speaker system to my truck but after all this crap has happened I've been having second thoughts..

1 out of 1 people think this is helpful.

It's definitely the headlight circuit then. Sounds like it's somehow upsetting the ignition system. Are these original type headlights or is this an upgrade of some kind. I'd check the ground connections for the headlights and the ignition system. HTH. -Jim

Your Answer

Add photo

Related Questions


Looking for a Used Tahoe in your area?

CarGurus has 36,219 nationwide Tahoe listings starting at $1,700.


Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 FordNut
Reputation 740
#2 Tom Demyan
Tom Demyan
Reputation 630
#3 Rowefast
Reputation 540
View All

Related Models For Sale

Used GMC Yukon"
546 Great Deals out of 14,659 listings starting at $1,595
Used Chevrolet Suburban"
643 Great Deals out of 24,160 listings starting at $1,500
Used Ford Explorer"
1,336 Great Deals out of 71,680 listings starting at $300
Used Ford F-150"
3,183 Great Deals out of 216,374 listings starting at $1,900
Used Jeep Grand Cherokee"
1,169 Great Deals out of 73,675 listings starting at $1,500
Used Toyota 4Runner"
356 Great Deals out of 18,763 listings starting at $2,400
Used GMC Sierra 1500"
1,020 Great Deals out of 56,299 listings starting at $2,499

Used Cars For Sale

2017 Chevrolet Tahoe For Sale
3,601 listings starting at $42,990
2016 Chevrolet Tahoe For Sale
58 Great Deals out of 12,001 listings starting at $34,544
2015 Chevrolet Tahoe For Sale
191 Great Deals out of 3,942 listings starting at $29,770
2014 Chevrolet Tahoe For Sale
43 Great Deals out of 758 listings starting at $16,486
2013 Chevrolet Tahoe For Sale
137 Great Deals out of 2,112 listings starting at $12,900