what would cause misfiring to bounce around from one cylinder to another in 88 Fiero.

90

Asked by Jul 10, 2015 at 08:49 PM about the 1988 Pontiac Fiero GT

Question type: Maintenance & Repair

yesterday mechanic said one cylinder out. today checking...not sure which cylinder it is...
misfiring bouncing around from cylinder to cylinder... mechanic will continue to check.
Since it's not just one cylinder out it's obvious its not just a bad spark plug...plug wire
would act like that? or valve train?

9 Answers

65,705

Check the distributor module and the distributor,for random misfiring.

2 of 2 people found this helpful.
90

Thanks for this info.It gives me something to swing by the mechanic. so sure they will appreciate a back seat helper. LOL!!!

2 of 2 people found this helpful.
65,705

You are welcome,and it dont mahter who tells you whats wrong,the only issue is getting it fixed,good luck with it.

2 of 2 people found this helpful.
25,535

also check the dist. shaft for any play..test or change all plug wires/cap/rotor....

2 of 2 people found this helpful.
67,445

Also check the vacuum and mechanical advance mechanisms in the distributor. One other thing, not trying to be a wise guy but how old is the mechanic who's working on this car? If he's a young fellow he's not going to have any idea of what he's looking at. This car is 27 years old. You want an older mechanic working on it. Late 40s or older. Back in the '80s I was running into the same thing with my cars from the '60s. Even as recently as 2012 with my '93 Caprice, that I bought new, had the youngsters scratching their heads. HTH. -Jim

90

T_S_T you are so right...just get it fixed!

3 of 3 people found this helpful.
90

Kelly you answered yesterday too...thanks. taking note of all possibilities and running them by mechanic.

2 of 2 people found this helpful.
90

Js08016 thanks for your input today also...and you're not being a wise guy. Thought of that my self but there is a large staff at this place and some older. Talking to parts manager and he worked w/ Fiero's way back when and can't understand not getting his know how. Even though been driving new cars for many years this cylinder issue is a flashback into the past and there were just so many fixes...you all have mentioned them and hopefully they will figure it out. They looked at it for first time late this afternoon and were doing "testing" to see what was what and will keep checking it out on Monday. JUST get it fixed and move on! Thanks again.

2 of 2 people found this helpful.
67,445

You're welcome. Glad to help. -Jim

Your Answer

Add photo

Related Questions

Fiero

Looking for a Used Fiero in your area?

CarGurus has 66 nationwide Fiero listings and the tools to find you a great deal.

ZIP:

Search Pontiac Fiero Questions

Pontiac Fiero Experts

#1 Andrew Welsh
Andrew Welsh
Reputation 230
#2 THORNY68
THORNY68
Reputation 220
#2 Steve Neyens
Steve Neyens
Reputation 220
View All

Related Models For Sale

Used Pontiac Firebird
4 Great Deals out of 768 listings starting at $1,791
Used Chevrolet Corvette
149 Great Deals out of 20,684 listings starting at $3,995
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Chevrolet Camaro
244 Great Deals out of 31,194 listings starting at $369
Used Toyota MR2
17 listings
Used Dodge Charger
454 Great Deals out of 29,324 listings starting at $2,300
Used Nissan 300ZX
130 listings
Used Porsche 911
91 Great Deals out of 4,513 listings starting at $10,500
Used BMW 3 Series
941 Great Deals out of 30,258 listings starting at $1,000
Used Toyota Supra
53 listings starting at $32,500

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.