Time to get an easy out kit...Errrr.

[Ebenezr]

I Want My Power Back

I'm singing: HELP! I need somebody. Help not just anybody.........

[tom4bren]

Sorry to jack your thread before you were ready.

Is there any way to easily tell if your timing belt jumped a tooth. Kinda sounds like a timinig issue to me.

[Ebenezr]

Sorry to jack your thread before you were ready.

Is there any way to easily tell if your timing belt jumped a tooth. Kinda sounds like a timinig issue to me.

All I can say is "OH cr***p" I didnot think of that. But there is some intermittent nature to the prob. Like after dumping seafoam in it ran great for several miles and thought this stuff just is the cats meow. Not.

[Gussie2000]

I Want My Power Back

I'm singing: HELP! I need somebody. Help not just anybody.........

My brother-in-law axiom had the same but very same issues

My mech did the following :

Examined the entire engine and noticed there was a crack in one of the valve covers ( Hopefully this doesn't apply to you );After the valve cover was repaired compression testing was performed to make sure engine was completely seal off,EGR was cleaned out,( OMG how clogged that son of a B.... were )

The mech proceeded to replaced one of the coils wiring because it was faulty and causing the misfire ( You may want to have ALL coils & wiring checked for proper operacion ) The truck won't move foward on low RPMS,but take off like a rocket on high RPMS ( Spark plugs were also replaced ) Don't try to cut corners and get the best ones out there.

The mech also replaced fuel pump,after new one was installed he tested to make sure wiring was not faulty.

Transmission was rebuilt because it was shifting roughly,no shifting or stall just like your VX.

And finally radiatior was replaced and brand-new antifreeze to make sure car can be just cool during the summer.

After all that was taken care off axiom is running like a champ

[Ldub]

A few random thoughts...

If it were the timing belt, it wouldn't run right at any rpm.

You don't need a new coil pack to play "musical chairs", though the random misfire code isn't pointing to a specific coil pack, which makes it hard to know which one to switch first. (to see if the misfire code moves with it after resetting the ecu)

Any unmetered air getting into the system via leaks in any vacuum controlled system will wreak havoc & throw "codes-a-plenty"...

As a last, or maybe first resort, try to find a VX Bro or Sis who is sympathetic to your problem, & switch ECU's, to see if that's the culprit...

[Y33TREKker]

Fuel pressure regulator? Very common VX ailment it seems, and a faulty one would be causing the symptoms you've described.

[Ebenezr]

Fuel pressure regulator? Very common VX ailment it seems, and a faulty one would be causing the symptoms you've described.

I did check the fuel pressure as mentioned above. It was 38 with key on and 32-34 with the engine on. I'm thinking now that may be low. Does anyone know what it should be. I can't seem to dig up this info.

[Y33TREKker]

I did check the fuel pressure as mentioned above. It was 38 with key on and 32-34 with the engine on. I'm thinking now that may be low. Does anyone know what it should be. I can't seem to dig up this info.

Is it possible it was just checked during one of those "good" moments though?

And the downloadable manual suggests that "Key On" fuel pressure should be between 333-376 kpa (48-55 psi).

If the problem is intermittent like you described, who knows if even the comparably low pressures you read remain constant under actual load/driving conditions.

[Ebenezr]

Is it possible it was just checked during one of those "good" moments though?

And the downloadable manual suggests that "Key On" fuel pressure should be between 333-376 kpa (48-55 psi).

If the problem is intermittent like you described, who knows if even the comparably low pressures you read remain constant under actual load/driving conditions.

Hmm. I am curiious where you found that in the manual.? I couldn't find it. Thinkin then I should go for FPR replacement.

[tom4bren]

If it were the timing belt, it wouldn't run right at any rpm.

Right but would show up more to the Butt Dyno during acceleration rather than RPM related. Remember the timing lag on the old MOPAR engines???