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93 6.5l turbo diesel

93 6.5l turbo diesel 2500

93 6.5l turbo diesel

Postby dom1505 [OP] » Nov 30 2012, 10:02pm

I have a gmc sierra 2500 6.5l turbo diesel i have just recently been having a problem with what i think may be fuel dilivery and I have changed my fuel filter that was my first though any way its mostly when Im going up hill and at about 30-35 mph I have a huge loss in power and the truck sputters and hardly makes it up, any idea?im new to diesel but am doin my best to learn it and figure it out
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93 6.5l turbo diesel

Postby WrensLawnCare » Dec 01 2012, 12:10am

I'm not too knowledgeable in the diesel area but sounds like injectors maybe.
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Re: 93 6.5l turbo diesel

Postby dom1505 [OP] » Dec 01 2012, 1:53am

I had thought about that but it runs fine under 35 and its not all the time also I checked my headers with a temp gun and they are all putting out about the same however I will pull them and check them to be sure I really apprishiate the imput thanks
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Re: 93 6.5l turbo diesel

Postby Voodoo » Dec 01 2012, 2:17am

This may sound silly, but oil pump maybe. Maybe some diesel guys will chime in, but I had a 94 6.5L and when pulling the race car I experienced a similar problem. Only under heavy load. It was the oil pump.
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Re: 93 6.5l turbo diesel

Postby 01dually6.0 » Dec 01 2012, 2:35am

Injection pump maby ? Any black smoke from exaust ?
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Re: 93 6.5l turbo diesel

Postby dom1505 [OP] » Dec 01 2012, 3:07am

Hmm that seems odd but then again I've had wierder problems, did it change your oil pressure at all (did your oil guage change) I'm guessing yours was a diesel? That would be nice considering its a $30 part
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Re: 93 6.5l turbo diesel

Postby Voodoo » Dec 01 2012, 2:25pm

Yes, Id notice the oil pressure dropping and then she'd fall on her face. Get to the top of the hill, and it seemed to be like normal. Did this year truck have the "reduce power" protection? I know the newer trucks kill engine power to protect from damage when something is going wrong.
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Re: 93 6.5l turbo diesel

Postby dom1505 [OP] » Dec 01 2012, 3:50pm

I thought about the injection pump to but wouldn't that make the same thing happen on flat land to? Ya I thought have any drop in oil pressure at all. And I'm 90% this year did not its pre obd 2 96 and down is
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Re: 93 6.5l turbo diesel

Postby dom1505 [OP] » Dec 01 2012, 4:14pm

Let me know what yall think of this, maybe I'm not starving the engine for fuel but giving it to much maybe a throttle position sencor?
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Re: 93 6.5l turbo diesel

Postby 01dually6.0 » Dec 01 2012, 6:41pm

Tps sensor you could be on the right track. My 93 k2500 gasser does all sorts of strange things when thats shot. Also it may "reduce power production " like voodoo had mentioned.
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