Actually, the correct terms are SOHC or DOHC referring to each cylinder head. So a V engine SOHC will have 2 camshafts and a DOHC V engine will have 4. But of course a pushrod engine will only have 1.
So the 7.3L is a pushrod engine? Ok now that makes sense. I thought it was a SOHC engine, hence why I thought there was 2 cams.
Hey guys,
This is where I am so far.Driving two days ago at 55mph with no load, she just started slowly dieing. I was able to limp it home but barely. Long story short, I replaced the left side valve cover gasket, but the only thing burnt on that was for the glow plugs. The truck will start and run on four cylinders. If I unplug the left side valve cover plugs, it shuts off. If I unplug the right side, nothing changes (keeps running). The pins in the vcg spec out at 3.6 ohms. Could the IDM crap the bed on just one bank of the injectors. I replaced the IDm two years ago. I wish I had a spare to throw on to see if that fixes my problem. Thoughts?
i would look into the gasket or harness inside something could have popped loose could be burned as well. listen to the guys that have been on here the longest. they have good ideas.
Now could you still get compression without the use of glow plugs if 1/2 of the engine limps the other side along? So does that only leave fuel/compression?
Now could you still get compression without the use of glow plugs if 1/2 of the engine limps the other side along? So does that only leave fuel/compression?
And yet, you persist!
Quote:
Originally Posted by otpracer
Hey guys,
This is where I am so far.Driving two days ago at 55mph with no load, she just started slowly dieing. I was able to limp it home but barely. Long story short, I replaced the left side valve cover gasket, but the only thing burnt on that was for the glow plugs. The truck will start and run on four cylinders. If I unplug the left side valve cover plugs, it shuts off. If I unplug the right side, nothing changes (keeps running). The pins in the vcg spec out at 3.6 ohms. Could the IDM crap the bed on just one bank of the injectors. I replaced the IDm two years ago. I wish I had a spare to throw on to see if that fixes my problem. Thoughts?
A short in the Under Valve Cover harness will also show an IDM failure code, but normaly will only kill one side of the engine. I doubt that is the problem, but wouldn't hurt to look at.
Look in the for sale adds here, there are a few IDM's available. they are all interchangable 94-'02.
IDM or harnesses. Likley the IDM. see it all the time.
__________________
1995 F-250 STROKE. 5 speed to BTS auto conversion "done right",DUALLY conversion, 4 inch stacks. IDM mod, Tymar cold air intake,Down pipe,6 pos flip chip, 189,000 and going strong! And the best part, ITS PAID FOR!!!!!!!!!!!!!!!!
Recheck the continuity and resistance at the VCG pins. I had an issue where I thought they were alright b/c it was close enough to continuous for my meter to beep, but the IDM wants REALLY specific resistance. I eventually got around to rechecking it, after pulling everything and it's mom apart, and saw that my digital meter was reading one of the injectors slightly outside the workbook range. Turned out one of the UVCH wires was slightly toasted from a GP wire working loose at the connector and frying. The damage was enough to put the IDM into limp mode and shut down that bank.
And for what it's worth, I'll change the 4 cam timing belt on my wife's subaru ten times before I'd choose to do almost ANYTHING on a 7.3 stuffed in an e-van. Just saying.
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