Deisel Engine Question

redcj3a · 05-20-2008, 02:28 PM

Since I know many of you are serious sources of vehicle engine information, I have a question regarding a potential vehicle.

I just saw a 2002 C3500 with a 6.5 Litre Deisel engine and an automatic transmission for sale pretty reasonable. I am assuming this engine is not the current Duramax Deisel that so many GM owners speak so highly of since there was no Duramax emblem on the cab. It is a low mileage vehicle. Are there any concerns with this engine I should be aware of?

Thanks to all in advance.

John

carwash · 05-20-2008, 03:37 PM

Both motors found their way into the 2002 chevy trucks... the last of the 6.5's were getting used up and the duramax was there as well. the max is a 6.6.

the GM 6.5 Turbo Diesel is a pig. It is a converted gas engine that was plagued with problems from the get go. Seriously underpowered, Injection pump issues were endless. There were fixes for them, and by 2002 you would think that the motor in that truck would be good to go.

I had one, and it sucked the balls. I hung onto it for a total of 3 days before taking it back to the dealership and threatening to drive it thru the window if they didn't take it back for full refund.

Funny part is tho, i have heard people swear by the motor and love it to death. So, if it's a good deal, drive it. If it feels good, strong, etc, go for it. If you don't like it, resell.

4RunnerAdam · 05-20-2008, 05:44 PM

Guy I work with has one. Had a multiple injector pump problems. Replaced one and a few months later it went out again. Replaced it with a marine pump (SPENDY) and it works now.

redcj3a · 05-20-2008, 06:55 PM

Thanks guys. I knew I would get some straight forward comments here about the engine.

It is appreciated.

John

JET455 · 05-20-2008, 07:09 PM

Quote:

Originally Posted by carwash

the GM 6.5 Turbo Diesel is a pig. It is a converted gas engine that was plagued with problems from the get go.

Wrong...... the original 5.7 (1979-80) used was a converted gas motor but the 6.2 was designed and built by Detroit diesel. I have ran 6.2's and 6.5's non turbos for for years and they hold up fine. But once the turbos where added these motor did not fair to well. Later model 6.5's are ok but these motors never had the power that Dodge and Ford where putting out.

JeffK5 · 05-20-2008, 07:19 PM

Quote:

Originally Posted by JET455

Wrong...... the original 5.7 (1979-80) used was a converted gas motor but the 6.2 was designed and built by Detroit diesel. I have ran 6.2's and 6.5's non turbos for for years and they hold up fine. But once the turbos where added these motor did not fair to well. Later model 6.5's are ok but these motors never had the power that Dodge and Ford where putting out.

Correct^^^

itbrokeagain · 05-20-2008, 08:26 PM

Quote:

Originally Posted by JET455

Wrong...... the original 5.7 (1979-80) used was a converted gas motor

BIGGEST turd in the world.

eighty3bronco · 05-20-2008, 09:12 PM

I drove one once on the highway and tried to pass another car and I felt that I couldn't even get out of my own way. I think that one was a '98. But don't quote me on that.

carwash · 05-20-2008, 10:54 PM

sorry, my facts weren't right... was all off the top of my head...

found this...

"Designed as a diesel engine from the ground up by the Detroit Diesel Division of General Motors, the original 6.2L diesel engine was introduced in the 1982 model year GMC and Chevy C/K pickup truck and full-size SUV lines. Taking this engine design to the next level in the 1992 model year, the new 6.5L diesel engine was an advancement in technology, and was designed for the application of a turbocharger. The 6.2L saw its final year of production in 1993. While the 6.5 was replaced by the Duramax 6600 beginning in the 2001 model year Chevy and GMC vehicle production, the 6.5L diesel engine continues to be manufactured and sold by AM General."

05-20-2008, 02:28 PM	#1
redcj3a Join Date: Jan 2007 Location: Middletown Posts: 118	Deisel Engine Question Since I know many of you are serious sources of vehicle engine information, I have a question regarding a potential vehicle. I just saw a 2002 C3500 with a 6.5 Litre Deisel engine and an automatic transmission for sale pretty reasonable. I am assuming this engine is not the current Duramax Deisel that so many GM owners speak so highly of since there was no Duramax emblem on the cab. It is a low mileage vehicle. Are there any concerns with this engine I should be aware of? Thanks to all in advance. John __________________ 1950 CJ3A. Oddfire 225 V6, T-86 transmission, Dana 18 transfer case, 4 wheel disc brakes, locked front and rear. Manual saginaw steering. Warn winch, 9,000#.

05-20-2008, 03:37 PM	#2
carwash pimpin' IS easy Join Date: Jan 2007 Location: Union, KY Posts: 3,344 Images: 605	Both motors found their way into the 2002 chevy trucks... the last of the 6.5's were getting used up and the duramax was there as well. the max is a 6.6. the GM 6.5 Turbo Diesel is a pig. It is a converted gas engine that was plagued with problems from the get go. Seriously underpowered, Injection pump issues were endless. There were fixes for them, and by 2002 you would think that the motor in that truck would be good to go. I had one, and it sucked the balls. I hung onto it for a total of 3 days before taking it back to the dealership and threatening to drive it thru the window if they didn't take it back for full refund. Funny part is tho, i have heard people swear by the motor and love it to death. So, if it's a good deal, drive it. If it feels good, strong, etc, go for it. If you don't like it, resell. __________________

05-20-2008, 06:55 PM	#4
redcj3a Join Date: Jan 2007 Location: Middletown Posts: 118	Thanks guys. I knew I would get some straight forward comments here about the engine. It is appreciated. John __________________ 1950 CJ3A. Oddfire 225 V6, T-86 transmission, Dana 18 transfer case, 4 wheel disc brakes, locked front and rear. Manual saginaw steering. Warn winch, 9,000#.

05-20-2008, 09:12 PM	#8
eighty3bronco anywhere but there Join Date: Jan 2007 Location: Blanchester, Oh Posts: 174	I drove one once on the highway and tried to pass another car and I felt that I couldn't even get out of my own way. I think that one was a '98. But don't quote me on that. __________________

05-20-2008, 10:54 PM	#9
carwash pimpin' IS easy Join Date: Jan 2007 Location: Union, KY Posts: 3,344 Images: 605	sorry, my facts weren't right... was all off the top of my head... found this... "Designed as a diesel engine from the ground up by the Detroit Diesel Division of General Motors, the original 6.2L diesel engine was introduced in the 1982 model year GMC and Chevy C/K pickup truck and full-size SUV lines. Taking this engine design to the next level in the 1992 model year, the new 6.5L diesel engine was an advancement in technology, and was designed for the application of a turbocharger. The 6.2L saw its final year of production in 1993. While the 6.5 was replaced by the Duramax 6600 beginning in the 2001 model year Chevy and GMC vehicle production, the 6.5L diesel engine continues to be manufactured and sold by AM General." __________________

05-20-2008, 05:44 PM	#3
4RunnerAdam Join Date: Apr 2007 Location: near eastgate mall Posts: 171	Guy I work with has one. Had a multiple injector pump problems. Replaced one and a few months later it went out again. Replaced it with a marine pump (SPENDY) and it works now.

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