Vincenthdfan
Member
- Joined
- Mar 17, 2018
- Messages
- 65
- Reaction score
- 2
- Points
- 8
- Location
- Olympia, Washington
- Vehicle Year
- 1993
- Make / Model
- Ford
- Transmission
- Manual
Hello all,
I havent been on here for a while since getting my 93 Ranger XLT back together. I've been out enjoying it...man it sure drives nice and pulls hard with the 5 speed conversion and 97 4.0 engine I installed.
However, I noticed the other day when running down the freeway above 65 mph and at 2100 rpm, there is a buzzy/imbalanced feeling coming from the engine.
Its not in the drive train, its definitely coming from the engine...it never did this with the original 93 engine installed.
Then, when I accelerate to 2500 rpm's I can hear a pronounced rattling sound, almost like a detonation sound, in fact it almost sounds like valve float when you over rev an engine?
Again, it never did this with original engine so it's puzzling?
This engine is in very good condition, has around 125,000 miles on it and runs really well, except in these rpm ranges.
I do feel a slight tremble at idle too, not real bad, but certainly not as buttery smooth as one would expect from an engine with all new plugs & plug wires installed.
I'm wondering if it could possibly be a fuel injector causing a lean condition in one of the cylinders....thoughts?
I havent been on here for a while since getting my 93 Ranger XLT back together. I've been out enjoying it...man it sure drives nice and pulls hard with the 5 speed conversion and 97 4.0 engine I installed.
However, I noticed the other day when running down the freeway above 65 mph and at 2100 rpm, there is a buzzy/imbalanced feeling coming from the engine.
Its not in the drive train, its definitely coming from the engine...it never did this with the original 93 engine installed.
Then, when I accelerate to 2500 rpm's I can hear a pronounced rattling sound, almost like a detonation sound, in fact it almost sounds like valve float when you over rev an engine?
Again, it never did this with original engine so it's puzzling?
This engine is in very good condition, has around 125,000 miles on it and runs really well, except in these rpm ranges.
I do feel a slight tremble at idle too, not real bad, but certainly not as buttery smooth as one would expect from an engine with all new plugs & plug wires installed.
I'm wondering if it could possibly be a fuel injector causing a lean condition in one of the cylinders....thoughts?