Bronco Forum - Full Size Ford Bronco Forum banner
1 - 8 of 8 Posts

·
Registered
Joined
·
48 Posts
Discussion Starter · #1 ·
I have noticed lately that when in the upper end of the RPM range ther is a miss or skip, maybe studder is a better word for it.

Notice under load such as passing or entering freeway with foot on floor. Mostly 3000 RPMs to 4500 RPMs
Yes, I probably drive my truck a little on the hard side.
Also getting a check engine light randomly on and off even when crusing down the road at various speeds.
Truck starts well and runs like a whipped mokey otherwise.
Truck was bought well used last summer.
Don't know when the plugs, cap, rotor, wires, fuel filter were last changed.
Oil and Air filter are fresh.

Thinking of pulling the cap and plugs to take a look.
Tracking down a chiltons manual also.

Going to try and pull codes.

Any other ideas?


Peace
Saulnier


PS checked rust on rear fenders.... not contributing to engine studder.
 

·
Registered
Joined
·
48 Posts
Discussion Starter · #3 ·
Just pulled the cap and did a clean up with 320 sand paper. Hit the rotor also.
Pulled the plugs one by one.
Tan to light gray in color. Dry. Gap was .055-.060
Re-gapped to .050 put a small amount of grease on the threads and re-installed.
The studder is almost gone.
Check enging light came on once in 10 minute abusive driving test.
Seems to run better.

Will probably change the fuel filter also.
This truck came from jersey so everything is 5.68 times harder to get off.

Might try to read the codes Saturday.

Peace
Saulnier
 

·
Registered
Joined
·
1,026 Posts
Those electrical parts like plugs, wires, cap and rotor are consumables. Same goes for the fuel filter. Even though they look good I would replace them anyway.

Check for codes. All you need is a small piece of wire. No need for a code reader.
 

·
Teddy Bear
Joined
·
2,209 Posts
my dads old 90 had the same problem his turned out to be the thing on the side of the distributer, sorry i dont know the name of it but if you go and buy the tool to get it out most auto parts stores can test it for you
 

·
Lick my balls
Joined
·
13,023 Posts
The first thing I do when I buy a new used vehicle, is give it a tune up and change the oil/filtre. This way you know you are good to go. If you have a stock coil than you want to gap your plugs to the recomended gap.


FIRST, CHECK FOR CODES.
 
1 - 8 of 8 Posts
Top