Egt
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Junior User
Joined: Dec 2005
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Egt
I have a 2000 PSD with 4" exhaust and DP tuner. I have the 40, 60 , 80 tow and 80 econo. I pull a 3 horse aluminum slant trailer. Loaded with 3 horses, it takes a steep grade before it will shift out of overdrive. I have gauges and my EGT gets up to 12-1300 when pulling up a hill with a steep grade or a long pull. I shift my tuner down to 40 tow, but still runs hot. If I shift down to drive that normally brings the EGT down. Any suggestions?
Thanks, Chad
Thanks, Chad
Post Fiend
Joined: Jun 2004
Posts: 9,293
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From: Parker, CO
Depends on what your RPM's are. Yes you can raise EGT's pretty high on a heavy load even when there is absolutely nothing wrong with the truck. If you are lugging the engine up a long incline, then the temps will be higher than if you downshifted and ran at higher engine speeds. That turbo isn't doing much to provide air at lower RPM's. So it is normal to see temps drop when you downshift, as you noticed on your truck. What speed are you running on these long, steep grades?
I'm not sure where you live, but altitude can also be a factor. The higher the altitude, the easier it is to raise EGT's.
You can check for simple boost and exhaust leaks to see if something is wrong and causing abnormal temps. The intercooler boots are prone to leaking, so inspect them carefully. Also look for soot deposits around the exhaust manifolds and up-pipes. Soot indicates an exhaust leak.
I'm not sure where you live, but altitude can also be a factor. The higher the altitude, the easier it is to raise EGT's.
You can check for simple boost and exhaust leaks to see if something is wrong and causing abnormal temps. The intercooler boots are prone to leaking, so inspect them carefully. Also look for soot deposits around the exhaust manifolds and up-pipes. Soot indicates an exhaust leak.
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Junior User
Joined: Dec 2005
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Thanks for the reply, Most of my driving is on 2 lane highways traveling around 70 and yes I do live at a higher altitude (Wyoming). Should I just get in the habit of shifting out of OD before going up a steep grade?
Thanks, Chad
Thanks, Chad
Senior User
Joined: Dec 2006
Posts: 307
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From: Tooele, Utah
You can check for simple boost and exhaust leaks to see if something is wrong and causing abnormal temps. The intercooler boots are prone to leaking, so inspect them carefully. Also look for soot deposits around the exhaust manifolds and up-pipes. Soot indicates an exhaust leak.[/QUOTE]
i would take this advice and carful inspection could find a small problem you might not have seen before. these small things can cause what you are explaining.
i would take this advice and carful inspection could find a small problem you might not have seen before. these small things can cause what you are explaining.
Posting Guru
Joined: Aug 2005
Posts: 1,768
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From: Central Alabama
These guys are right about lugging it in OD, your EGTs can get out of hand fast while towing. The simplest and least expensive way is to drop it into 3rd and raise those RPMs up and get that turbo spooling. Check and clean your intercooler and manifold boots.
I went several steps further, because I like pulling in OD. If you have any money layin around here are some things that will help lower EGTs:
-4 or 5 inch exhaust with a 4 or 3.5 inch down-pipe.
-Get rid of the stock air box and get a better flowing intake.
There's more but it gets pricey!
I went several steps further, because I like pulling in OD. If you have any money layin around here are some things that will help lower EGTs:
-4 or 5 inch exhaust with a 4 or 3.5 inch down-pipe.
-Get rid of the stock air box and get a better flowing intake.
There's more but it gets pricey!
