Compression Ignition Addict
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Heater core leak and a "mis-fire?"
If it ain't one thing, its another. I think I need to have an exoricist pay a visit to my Beastie. Ended up on a "short" (about 400 mi one way) run a couple of days ago and noticed the distinct smell of anti-freeze coming from the defrost vents. Turns out there was a major, to my thinking, leak somewhere in the heater core. Looked under the hood and everything was clean (relatively speaking) but underneath there was a fast dripping of anti-freeze as well as some leaking onto the floorboard/pass. side. I stopped at a service station and picked up a gallon of anti-freeze and 2 bottles of BarJan stop leak. Well, it appears the stop leak worked, and I might add rather quickly. Topped of the resovoir(sp) and finished the run and made it back home without any leaks, but I still have the strong odor of anti-freeze whenever I turn on the blower fan. So I'm guessing I need to somehow remove the core cover and wash it out. I know the core will have to be replaced but finances right now just won't allow it. (so broke I can't even pay attention) Also, and I think the most important thing here, it this damme engine miss. Which I'll try to explain in 43,000 words or less..(fat chance guys..LOL). This "miss-fire" (which feels like its from only one cyl.)seems more pronounced when, A: the tranny upshifts a bit too early into 4th(?) and/or O/D and drops the RPM down to 14-1800. When this situation happens the engine really struggles and I usually have to manually turn the O/D off. The RPM's jump up and it "smoothes out". I'm sure it's still there just less noticable. B: Whenever I'm climbing a grade and she downshifts out of O/D, the miss will shake the heck outta the truck from aroud 2700 RPM and up. It's always there(the miss) just more pronounced during these 2 conditions. Now to my rather simple-minded thinking, I have either a bad/loose harness, or a failing/weak injector. To my recollection, it started doing this after Allegheny Ford replaced the PCM, and seriously, I don't have the money to take it somewhere else to have codes read. Trying to get this Beastie running right has put me so far behind on my bills somethimes I think I'm ahead. I know that the reader they have down at Advance Auto Parts won't read anything on this Beastie so thats not an option. And any work that needs to be done will have to be done by me and on the REAL cheap. She doesn't have much power, dogs a LOT on grades and on a really GOOD run, I'll see 10, maybe 10.5 MPG. If she's actually got a bad/mis-firing injector or a loose UVC harness, on just ONE cyl, thats 12 1/2% of my mileage AND power. Any thoughts one probable causes, ie what to look for first and go from there would be of tremendous help. And while I'm here, and to add another chapter to this Novella, going up hill, "pedal-to-the-metal, the most boost I've ever seen is about 13psi...isn't that just a tad bit low???
Last edited by howardtm; 04-30-2007 at 05:00 AM.