Well, my dad's truck finally died... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ric83 · 05-16-2006, 06:35 PM

Yup, he was on his way to work when his choke light came on, the engine died and the oil went everywhere. We tried to see from where, but we could see from where

Well, when I got there to pick him up (Hour and a half drive) he tried to start it up, but the starter was no good. We replaced it, but the truck was still a no go, the engine appeared to be locked up. He tried to turn in from the front of the engine, and sure enough, it would not budge. I guess it is time for an engine replacement??

79BIG10 · 05-17-2006, 12:35 AM

Could it have came from a busted oil pressure line or sending unit at the back of the block by the HEI? Try turning it from the torque converter/flexplate. I've had better luck there than at the front. At the front you have to deal with the belts taking out more of your energy.

84slopwaggin · 05-17-2006, 12:46 AM

That's one I can't understand about these trucks. When I retired mine it had very poor oil pressure to the point of where everytime I turned a corner or came to a hard stop the choke light would come on as a oil light. Can any of you guys explain this? I know pressure was low because when engine was at operating temp it would just read 25psi at idle.

MylilBowTie · 05-17-2006, 02:22 AM

Was there enough oil in the pan? It shouldnt drop oil pressure just for the sake of turning a hard corner or stopping very quickly.

ElGracho · 05-17-2006, 07:51 AM

http://www.gmtrucks.org/wiki/faq/81-...ressure_switch

Ric83 · 05-17-2006, 09:31 AM

Wow, thanks for that link, El Gracho. We really were at a loss as to why the choke light came on. That seems to clear it up.
So what exactly happened to make it loose all of its pressure like that? Definitely something major??? I am not sure if he has tried to look any further as to where the oil was released through and I have not had a chance to go over there yet with a chance to crawl under it. When we do, we will have to try turning it from the flex plate like you suggested B.

79BIG10 · 05-17-2006, 12:44 PM

usually if it's a oil leak like that it goes out the pan as in the thrown rod and punctured the pan. Not sure on the top part of the engine if not the oil pressure switch. The only place where the engine could spew that kind of oil at the top other than the switch would be the rocker arms and if the tins were on tight and gasketed then it shouldn't be there either. Even in the oil cap came loose it wouldn't lose that much.

chevyfan420 · 05-17-2006, 02:56 PM

Quote:

Originally Posted by 84slopwaggin

That's one I can't understand about these trucks. When I retired mine it had very poor oil pressure to the point of where everytime I turned a corner or came to a hard stop the choke light would come on as a oil light. Can any of you guys explain this? I know pressure was low because when engine was at operating temp it would just read 25psi at idle.

25 psi at operating temp is nothing to worry about

crawdad · 05-17-2006, 08:20 PM

Quote:

Originally Posted by chevyfan420

25 psi at operating temp is nothing to worry about

I was gonna say the same thing. Mine always hovers around 25-30 psi when the engine is at normal operating temp and at an idle. Nothing happened yet, but I wouldn't mind seeing it a little higher.

84slopwaggin · 05-18-2006, 12:25 AM

well in my case I'm pretty sure the oil pump was on the way out because (almost) 25psi isn't enough to supply the entire engine properly with oil. I noticed on my way home from the dealership from picking up my crate engine the lifters were just starting to tick as I made the last turn onto my street. I sure as heck wouldn't have trusted it to make many more trips with these signs. As it turned out the engine is a 350 so I'm glad I could possibly preserve the mains etc. for future use.

05-16-2006, 06:35 PM	#1
Ric83 Registered User Join Date: Jan 2003 Location: Austin, TX Posts: 824	Well, my dad's truck finally died... Yup, he was on his way to work when his choke light came on, the engine died and the oil went everywhere. We tried to see from where, but we could see from where Well, when I got there to pick him up (Hour and a half drive) he tried to start it up, but the starter was no good. We replaced it, but the truck was still a no go, the engine appeared to be locked up. He tried to turn in from the front of the engine, and sure enough, it would not budge. I guess it is time for an engine replacement?? __________________ Ric '83 Silverado SWB Fleetside Here she is

05-17-2006, 12:35 AM	#2
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,774	Re: Well, my dad's truck finally died... Could it have came from a busted oil pressure line or sending unit at the back of the block by the HEI? Try turning it from the torque converter/flexplate. I've had better luck there than at the front. At the front you have to deal with the belts taking out more of your energy. __________________ 1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson

05-17-2006, 12:46 AM	#3
84slopwaggin Registered User Join Date: Apr 2005 Location: Ar Posts: 558	Re: Well, my dad's truck finally died... That's one I can't understand about these trucks. When I retired mine it had very poor oil pressure to the point of where everytime I turned a corner or came to a hard stop the choke light would come on as a oil light. Can any of you guys explain this? I know pressure was low because when engine was at operating temp it would just read 25psi at idle.

05-17-2006, 02:22 AM	#4
MylilBowTie Right turn Clyde Join Date: Nov 2002 Location: Cincinnati, Ohio Posts: 2,911	Re: Well, my dad's truck finally died... Was there enough oil in the pan? It shouldnt drop oil pressure just for the sake of turning a hard corner or stopping very quickly. __________________ 1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI

05-17-2006, 07:51 AM	#5
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	Re: Well, my dad's truck finally died... http://www.gmtrucks.org/wiki/faq/81-...ressure_switch __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed

05-17-2006, 09:31 AM	#6
Ric83 Registered User Join Date: Jan 2003 Location: Austin, TX Posts: 824	Re: Well, my dad's truck finally died... Wow, thanks for that link, El Gracho. We really were at a loss as to why the choke light came on. That seems to clear it up. So what exactly happened to make it loose all of its pressure like that? Definitely something major??? I am not sure if he has tried to look any further as to where the oil was released through and I have not had a chance to go over there yet with a chance to crawl under it. When we do, we will have to try turning it from the flex plate like you suggested B. __________________ Ric '83 Silverado SWB Fleetside Here she is Last edited by Ric83; 05-17-2006 at 09:33 AM.

05-17-2006, 12:44 PM	#7
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,774	Re: Well, my dad's truck finally died... usually if it's a oil leak like that it goes out the pan as in the thrown rod and punctured the pan. Not sure on the top part of the engine if not the oil pressure switch. The only place where the engine could spew that kind of oil at the top other than the switch would be the rocker arms and if the tins were on tight and gasketed then it shouldn't be there either. Even in the oil cap came loose it wouldn't lose that much. __________________ 1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson

05-18-2006, 12:25 AM	#10
84slopwaggin Registered User Join Date: Apr 2005 Location: Ar Posts: 558	Re: Well, my dad's truck finally died... well in my case I'm pretty sure the oil pump was on the way out because (almost) 25psi isn't enough to supply the entire engine properly with oil. I noticed on my way home from the dealership from picking up my crate engine the lifters were just starting to tick as I made the last turn onto my street. I sure as heck wouldn't have trusted it to make many more trips with these signs. As it turned out the engine is a 350 so I'm glad I could possibly preserve the mains etc. for future use.



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