NO power on highway 62mph max
11-21-2006, 04:17 AM
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NO power on highway 62mph max
I have a 94 3500 ctd with an auto tranny. All of a sudden the truck is doggy around town and I cant get any speed out of it on the highway. What should I check.
Thanks
Herb
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Herb
11-21-2006, 06:45 AM
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is it black smoking at all? if not, check the AFC on the injection pump... either a broken signal line from the manifold to the AFC or a torn AFC diaphragm.
if it's black smoking, look for leaks at the intercooler boots
if it's black smoking, look for leaks at the intercooler boots
11-21-2006, 10:23 AM
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Rick
11-21-2006, 11:47 AM
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Not sure on the fuel filter but it looks pretty new, I dont think it is a filter issue as it was a sudden and drastic change. Could someone tell me exactly what I am looking for or how to test it as far as the afc goes. I am a diesel newbie, but have plenty of mechanical experience.
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Herb
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Herb
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11-21-2006, 02:11 PM
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11-21-2006, 04:47 PM
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On the early 94's the wastegate line starts at the AFC connection. So its possible the diaphram ruptured and is dumping the boost signal pressure. On my 95 w/g line starts on compressor housing.
11-21-2006, 07:41 PM
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my vote
My vote is either fuel filter plugged, or fuel gelled if temp is low, got down to 20 degrees here last night. Wastegate is also a real possible problem. Good luck and let us know what it was...
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