- Joined
- Oct 18, 2007
- Messages
- 109
- Points
- 3,101
- Age
- 36
- City
- Wisconsin
- Vehicle Year
- 1993
- Transmission
- Manual
my 93 ranger 4.0 is running lean,i recently completely rebuilt the top end (heads, valve job, rockers, injectors). now after all that my engine is running lean. when i start it up it idles good and temp is normal but when i go to drive it the temp slowly goes up to about halfway. the engine is running lean i can see that on my air fuel guage and it never did that before i rebuilt it. also put in new plugs, wires, air filter, water pump radiator. i am picking up new o2 sensors tomorrow also a new MAF sensor. but does anyone have any clue why it would just lean out?
one more thing is when i first start it and start driving it chokes or misfires but when i stomp on it, it does not. but after a little while of driving it stops.
one more thing is when i first start it and start driving it chokes or misfires but when i stomp on it, it does not. but after a little while of driving it stops.
