4.2 poor acceleration, intake backfire
Thread Starter
|
Senior User
Joined: Oct 2000
Posts: 187
Likes: 0
4.2 poor acceleration, intake backfire
truck is a 1997 f150 4.2 auto. has intake backfire and poor acceleration off the line.it has 150,000KM and was untouched until it came to our shop. we have changed plugs and wires, done a comp test, reprogrammed the pcm, replace the crank sensor, cleaned the injectors and mass air flow sensor and tested it, we then tried a used computer and nothing has helped
it still has the factory exhaust on it.can anybody help us out.
it still has the factory exhaust on it.can anybody help us out.
Thread
Thread Starter
Forum
Replies
Last Post
Jessica Pease
1968-Present E-Series Van/Cutaway/Chassis
4
Feb 18, 2016 11:31 AM
woodstockaz
2.6, 2.8, 2.9, 4.0 & SOHC 4.0 V6
14
Aug 8, 2003 03:20 AM
1997, 42, accelaration, acceleration, backfire, backfires, backfiring, ecceleration, econoline, f150, ford, intake, lines, liter, poor, truck
