Recent content by Ksat

At least on my '06, the PCM cuts injector control on a misfiring cylinder, not ignition control. The is an to prevent catalyst damage. A plug that fires in absence of fuel isn't going to cause detonation or any other problems.

That flowchart is incomplete. A hammer needs to be an option somewhere in there :)

If the input shaft to the transfer case is not moving, you'll be wasting your time tearing into the case. Crawl under there and see if the input shaft is spinning when trans is in gear and a helper hits the gas. Lift all wheels off the ground, obviously, in case it decides to start working again,

First off, a/c flushing should, at most, only be performed on the evaporator and refrigerant lines that are free-flowing/not have anything like mufflers, filters, orifice tubes, etc. on them. Both should be removed from the vehicle when flushing to ensure the solvents are fully drained. Blowing...

NP242 (Selec Trac) has neutral- and all selections that NP231 (Command-Trac) has for that matter- and adds a full-time option to the mix.

Does it matter what gear the transmission is in when when towing like that?

Shows you what I know :) . Thanks for that. I looked it up and you are indeed correct.

I don't think a clogged cat would cause a misfire. If you have a scope, you could back probe both the injector and ignition coil and compare waveforms to another cylinder. Checking compression on 3 wouldn't be a bad idea, either. If you don't have a scope, take a resistance reading on 3's...

Mine leaked at the same location. Maybe it's a common failure point. I tightened the petcock to no avail and just ended up replacing the rad. Not a hard job.

Glad you got it fixed, There's a sticky in the forum here about this very issue.

Don't buy any ignition coils just yet. Ignore the O2 codes for now, especially if your miss occurs even when the engine is stone cold. Swap #4 ignition coil with one from another cylinder, erase the codes, drive vehicle and see if the misfire changes cylinders. If no change, do the same with...

You may have a bad PCM. For some reason, #4 ignition coil control is the one that gets fried. Happened to me a few weeks ago. I'm assuming you don't have a scope. Do you have a multimeter that can read frequency (via the test leads)?

You're dating yourself, seafish, if you actually remember the good ol' days when diesel was cheaper :) The gas crisis of the 70's made the public and car manufacturers consider diesel as an alternative, as it was significantly cheaper at the time. Car manufacturers rushed either new engines or...

If the diesel PCM is in the same location as the gasser, it should be under the hood behind the battery bolted to the inside fender. Not hard to get to and easy to take out. You'll most likely need to get the part number off it and match it up with the replacement unit. And, yes, the PCM would...

PCM is attempting to add fuel to a perceived lean condition, based on O2 feedback. If you were getting fuel in through the purge solenoid, you would have a rich condition and your trims would head the other direction. +32% is a high number. Since your problem is occurring on both banks that...