My 87 Grand National was running a little rough and popped during boost. I put a new coil and module. Double checked all the wiring. It runs worse than before, backfires and stalls at idle. Help!

Airtime
0

Asked by Jan 20, 2012 at 03:52 PM about the 1987 Buick Grand National

Question type: Maintenance & Repair

1987 Buick Grand National 3.8 Turbo 87,000 miles

1 Answer

Ryan Raidt
45

I have seen a T type have all sorts of problems due to a simple battery connection. Your'e going to have to also check vacuum lines, the turbo it self, poss. compression. "during boost" how much psi? stock turbos vs aftermarket are a lot more forgiving, but depending on upgrades, def. sensors, you might have a long road in front of you.

Your Answer

Add photo

Related Questions

Search Buick Grand National Questions

Buick Grand National Experts

#1 Joey Warren
Joey Warren
Reputation 110
#2 tennisshoes
tennisshoes
Reputation 70
#3 kenet12
kenet12
Reputation 60
View All

Related Models For Sale

Used Buick Regal"
143 Great Deals out of 9,052 listings starting at $7,990
Used Chevrolet Camaro"
562 Great Deals out of 35,796 listings starting at $3,497
Used Chevrolet Monte Carlo"
17 Great Deals out of 2,016 listings starting at $1,988
Used Ford Mustang"
675 Great Deals out of 41,431 listings starting at $1,500
Used Chevrolet Corvette"
329 Great Deals out of 19,172 listings starting at $2,995
Used Dodge Charger"
547 Great Deals out of 31,728 listings starting at $1,800
Used Pontiac Firebird"
16 Great Deals out of 876 listings starting at $1,500
Used Chevrolet Caprice"
192 listings starting at $8,200