big miss fire????? Please help
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New User
Joined: Sep 2012
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big miss fire????? Please help
i have a 97 f350 460 One day siting in line waiting for gas it started running really rough. I had a new egr valve put in. was ok for a day and then back to skipping Truck starts and idles Ok, a little rough. when driving once around 1500 rpm it starts braking up sometime to the point where i think it might stall.
things that have ben done/ checked
new egr
new fuel regulator valve
new coil
new plugs, coil, cap rotor
fuel pressure 40 psi at ignition 35 psi running up to 40 psi driving
new fuel filter
fuel socks cleaned in tank(were very clean to begin with
timing set at 10 deg
im pretty lost and dont wana keep chucking darts at thins thing
any thoughts. and thanks in advance!!
things that have ben done/ checked
new egr
new fuel regulator valve
new coil
new plugs, coil, cap rotor
fuel pressure 40 psi at ignition 35 psi running up to 40 psi driving
new fuel filter
fuel socks cleaned in tank(were very clean to begin with
timing set at 10 deg
im pretty lost and dont wana keep chucking darts at thins thing
any thoughts. and thanks in advance!!
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
I will guess that this is not a California truck.
So we are dealing with an OBD-I EEC-IV system then.
First off we need to see what codes are stored in the computers memory (CM).
We also have to check all the wiring and sensors with the electrical test (KOEO).
If you do not know how then go to this link below:
Fuel Injection Technical Library » How To Run a Self-Test
You can post the codes back here and let us know if the codes are KOEO, CM or KOER codes as the codes have different meanings depending on the test that they came from.
So we are dealing with an OBD-I EEC-IV system then.
First off we need to see what codes are stored in the computers memory (CM).
We also have to check all the wiring and sensors with the electrical test (KOEO).
If you do not know how then go to this link below:
Fuel Injection Technical Library » How To Run a Self-Test
You can post the codes back here and let us know if the codes are KOEO, CM or KOER codes as the codes have different meanings depending on the test that they came from.
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New User
Joined: Sep 2012
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the only code i get is 111....all clear
it seems like my issues are in the back passenger cylinder where the pcv valve is i am thinking this because i have a small manifold leak near that cylinder and when it cuts out the tick from the leak temp goes away. ????????????
it seems like my issues are in the back passenger cylinder where the pcv valve is i am thinking this because i have a small manifold leak near that cylinder and when it cuts out the tick from the leak temp goes away. ????????????
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