Will a misfire on cyl 8 cause an engine not to run?

Asked by Jun 26, 2015 at 09:16 PM about the 1996 Chevrolet Suburban C1500

Question type: Maintenance & Repair

I have a 96 chevy subrban 5.7l. Recently changed the entire ignition system, from
distributor to plugs including the ingition control module. Truck ran like a top. Then I
jumped time. Re timed motor and replaced the chain and gears. Im left with a misfire
on cyl. 8 only. compression tested at cranking, only in the low 70s, while other
cylinders on the same bank are reading 140's. Im thinking its a bent valve, but would
one cylinder keep the motor from running?

12 Answers

1,505

No it should still run kinda.not great but should run.

I knew I wasn't crazy. But thats the issue I'm having. Cranks no start. Cyl 8 misfire code. Low compression on only that cylinder. It's driving me nuts.

1,505

Will it start with a shot of starting fluid or put gas in throttle body?

After a few shots of starting fluid yes, more often than not. Then its just running rough, backfiring, normal symptoms of a misfire.

Also has a new map sensor.

1,505

These dam computers. Don't make it easy. If was old motor you could unhook the lifters and run.

Right!?! Part of my frustration. I'm used to working on old diesels, And certified on Cummins epa 2010 and earlier. I'm proficient enough but this a new monster to me.

1,505

Might be in best interest to put in another motor or replace head.unfortunately ecm need everything working right.

That's what I was leaning towards unfortunately.

1,505

Head job should take about 4hrs or so depending on how bolts come out of exhaust. Motor replacement 8hrs or so.

Yep. Gonna start on the head in the morning. Thanks for the talk friend.

1,505

These are my hours not garage hours.

Your Answer

Add photo

Related Questions

Suburban

Looking for a Used Suburban in your area?

CarGurus has 18,761 nationwide Suburban listings starting at $1,399.

ZIP:

Search Chevrolet Suburban Questions

Chevrolet Suburban Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 930
#2 Eric Fritz
Eric Fritz
Reputation 860
#3 mariroger
mariroger
Reputation 800
View All

Related Models For Sale

Used Chevrolet Tahoe
775 Great Deals out of 28,432 listings starting at $1,500
Used GMC Yukon
517 Great Deals out of 17,114 listings starting at $1,799
Used Ford Expedition
413 Great Deals out of 24,690 listings starting at $1,999
Used Ford F-150
2,691 Great Deals out of 211,555 listings starting at $1,000
Used Ford Explorer
940 Great Deals out of 73,742 listings starting at $750
Used GMC Suburban
177 listings starting at $1,495

Used Cars For Sale

2017 Chevrolet Suburban For Sale
4,279 listings starting at $38,592
2016 Chevrolet Suburban For Sale
45 Great Deals out of 3,554 listings starting at $36,940
2015 Chevrolet Suburban For Sale
40 Great Deals out of 1,689 listings starting at $29,000
2014 Chevrolet Suburban For Sale
21 Great Deals out of 572 listings starting at $20,784
2013 Chevrolet Suburban For Sale
44 Great Deals out of 928 listings starting at $16,777