Trouble shooting help
Thread Starter
|
Senior User
Joined: Mar 2004
Posts: 255
Likes: 0
From: Spokane
Trouble shooting help
My F-250 hasen't seen the road for a year. Been busy. A week prior to the problem I had 50 sheets of 3/4 plywood hauling up hill with no problem. Lots of power. Then one day drove to town and came out of a store and started it up and then rough running no power . Barely made it home at 35MPH. No power, running real rough, starts great, idles fine but rough, both gas tanks act the same, battery Ok. I didn't know the compressions before but they are like this. 90,110,100,120,90,100,110,85. Computer comes up with no error codes found. I thought maybe a timing chain slip but I checked timing with a light and it is right on. I am a good old world mechanic but not sure where to look. Fuel or electric. Questions
1) Fuel. Anyone know how to test fuel pressure at the engine. Fuel injected. If I only had a carb. Don't know how to test injector systems.
2) Electrical. Not sure what to do here. Are there some voltages that might give me a clue.
Thanks for reading
1) Fuel. Anyone know how to test fuel pressure at the engine. Fuel injected. If I only had a carb. Don't know how to test injector systems.
2) Electrical. Not sure what to do here. Are there some voltages that might give me a clue.
Thanks for reading
Freshman User
Joined: Jan 2007
Posts: 30
Likes: 0
i hava a 88 thats doing the same thing to check the fuel press it looks lika a valve stem on fuel rail mines at 35 psi dont no if thats were it is saposed tobe i no my plugs are wet with fuel when i pulled them but i would check that and the fuel filter mine clears up after a minute i gess just bad injectors or pluged
