machinist
New Member
- Joined
- Dec 18, 2008
- Messages
- 60
- Reaction score
- 1
- Points
- 0
- Location
- lyndonville, ny
- Vehicle Year
- 1988
- Make / Model
- ford
- Engine Size
- 3.9
- Transmission
- Manual
i have a 94 2.3 with a 5 speed. it has 160,000 on it. i have owned the truck for over 2 years and it has always been this way. when i start the engine it the idle is soooo speratic. i just put a k&n air intake, new plugs, new wires, new fuel pump and a new timing belt and tensioner. i just tested my coils and they seem to be fine. i have been searching for a leaky vaccum line but i cant find one.
at idle when i hammer the throttle, the engine back fires through the intake. and when it backfires you can hear the the engine take a huge gasp of air. since i have put the k&n on, this noise is so much worse. almost as loud as the leaky exhaust. the engine has also lost 80%of the power it had befor i started screwing with it. i thought maybe i screwed up the firing order, but i didnt. and i thought maybe i screwed up my timing, but i didnt.
What could this be? all input would be greatly appreciated. Thanks
at idle when i hammer the throttle, the engine back fires through the intake. and when it backfires you can hear the the engine take a huge gasp of air. since i have put the k&n on, this noise is so much worse. almost as loud as the leaky exhaust. the engine has also lost 80%of the power it had befor i started screwing with it. i thought maybe i screwed up the firing order, but i didnt. and i thought maybe i screwed up my timing, but i didnt.
What could this be? all input would be greatly appreciated. Thanks