If you replace spark plugs and wires and coil and plckup coil and milgletet and still will not keep running what do you do
Tina Hall
Alphonso Nicolas
Taya Moore
Maximillia Auer
Wiki User
∙ 15y agohow do you do a tuneup on a 1993 gmc truck
93-99
It could be in need of a tune up. Poor driving habits also effect the mpg, just saying.
The truck needs a tune up.
Could be in need of a tune up.
I am assuming this did not occur before the tune-up and isn't a cam wear or bent pushrod problem. Check your firing order. The firing order is stamped on the intake manifold.
There is nothing to tune up on a GMC Envoy except to change the plugs at 100,000 miles. Follow the manual for regular oil and drive line lubrication fluid changes. www.trailvoy.com Envoy enthusiasts forum!
Time for a tune up.
Tune up.
No.
At what degree do I set my timing for a 1985 GMC s15 pick-up truck?
yes
Call the GMC company. Look it up in te phone book.