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Car Forum / Chevrolet / Chevrolet Trucks / September 2004Nephew ran 98 S10 out of oil
*sigh* added 4 qts after he said it was running really bad. i'm wondering how long before it dies? " > *sigh* added 4 qts after he said it was running really bad. i'm wondering > how long before it dies? The engine or the nephew??? LOL > *sigh* added 4 qts after he said it was running really bad. i'm wondering > how long before it dies? Ha ha ha ha! > *sigh* added 4 qts after he said it was running really bad. i'm wondering > how long before it dies? It's probably severaly damaged already. What's the oil pressure on a cold start? What is the oil pressure after it's warmed up and in idle? Have a compression tester? If so, see how bad he cooked the rings. Doc Your not really supposed to run them till they stop dripping... Karl, sorry man. GMC Gremlin > > *sigh* added 4 qts after he said it was running really bad. i'm wondering > > how long before it dies? [quoted text clipped - 5 lines] > > Doc Bet the bearings are shot too, Id kick the kids a.s for not checking the oil. But ill bet he knew the strero worked ok. 1) take his keys 2) beat his a.s with a 2x4 3) make him pay for and swap out the engine 4) repeat as necessary > *sigh* added 4 qts after he said it was running really bad. i'm wondering > how long before it dies? Damn straight! When I have kids that reach the driving age, and they come to me wanting a car, I'm gonna go buy the first $300-500 beater I can find and present it to them. When they refuse to be caught dead in it, then I'm going to give them a pair of roller skates and sell the car. ;-) "Guess you should have taken the first choice, kid. Start saving your money for your own car" -Tony > 1) take his keys > 2) beat his a.s with a 2x4 [quoted text clipped - 3 lines] > > *sigh* added 4 qts after he said it was running really bad. i'm wondering > > how long before it dies? Had a friend working in a garage many years ago. One day a woman came in with her son. She had purchased the car for him and it needed it's first oil change. My friend pulled the plug and he thought the amount of oil that came out was rather small. He filled it and when the boy started the car he said "Hey, something is wrong here - The oil light is off!!". My friend said the woman got rather upset with her son. That was obviously before the days of electric fuel pumps which (for most cars) will not run if there is no oil pressure. > Damn straight! When I have kids that reach the driving age, and they > come to me wanting a car, I'm gonna go buy the first $300-500 beater I [quoted text clipped - 14 lines] > > > *sigh* added 4 qts after he said it was running really bad. i'm wondering > > > how long before it dies? > Had a friend working in a garage many years ago. One day a woman came in > with her son. She had purchased the car for him and it needed it's first [quoted text clipped - 5 lines] > That was obviously before the days of electric fuel pumps which (for most > cars) will not run if there is no oil pressure. What does an electric fuel pump have to do with it? Most electric fuel pumps will keep pumping right up until the engine grenades. I can't think of any car or PU built in the last 20 years that will shut a fuel pump down because of no oil pressure. Bob I had a 85 Camaro 2.8 that needs oil pressure to keep pumping. >> Had a friend working in a garage many years ago. One day a woman came in >> with her son. She had purchased the car for him and it needed it's first [quoted text clipped - 14 lines] > because of no oil pressure. > Bob Maybe that was just back in that era. I remember vehicles back then an before that got power for their fuel pumps through the oil pressure switch. Now they may only have roll over switches. At the time I thought it was a pretty good idea. I know of at least one case where it saved an engine. A girl told her father she could not keep the engine running. He asked if the oil light was on and she said it was. He told her to put in some oil. During start the pressure switch was bypassed by the starter solenoid. It filled up the bowl in the carburetor at start. > I had a 85 Camaro 2.8 that needs oil pressure to keep pumping. > > [quoted text clipped - 16 lines] > > because of no oil pressure. > > Bob > I had a 85 Camaro 2.8 that needs oil pressure to keep pumping. If that's really the case you should take in for repairs 'cause it's broke Bob > >> Had a friend working in a garage many years ago. One day a woman came in > >> with her son. She had purchased the car for him and it needed it's first [quoted text clipped - 14 lines] > > because of no oil pressure. > > Bob > > I had a 85 Camaro 2.8 that needs oil pressure to keep pumping. > > If that's really the case you should take in for repairs 'cause it's broke > Bob Not necessarily. I remember distinctly that the 1975 Starfire and the Vega engines had the power run through the oil pressure switch. The pump also got power from the starter solenoid. It's a safety thing. If the engine stops or vehicle rolls over you want the pump to stop. The line might have broken and be feeding a fire. The oil pressure switch was one way to perform that function, at least on some vehicles. > > > I had a 85 Camaro 2.8 that needs oil pressure to keep pumping. > > [quoted text clipped - 8 lines] > pressure switch was one way to perform that function, at least on some > vehicles. You are right about the Starfires and Vegas, but that has nothing to do with an 85 Camero or anything else built in the last 20 years. Bob > You are right about the Starfires and Vegas, but that has nothing to do with > an 85 Camero or anything else built in the last 20 years. I can't speak about the other cars but I know that if I turn on the key and don't start the truck with in 30 sec I have to recycle the key. If I don't it doesn't start. So for the 91 suburban at least the oil pressure switch does control the fuel pump. Actually the computer controls the fuel pump but it does use input from the sender. mark >:|X-No-Archive: yes >:| [quoted text clipped - 11 lines] >:| >:|mark the computer doesn't control the fuel pump. the fuel pump relay does. the OP switch only comes into play if the FP relay has failed. -Bret > >:|X-No-Archive: yes > >:| [quoted text clipped - 14 lines] > the computer doesn't control the fuel pump. the fuel pump relay does. > the OP switch only comes into play if the FP relay has failed. the ECM turns on the fuel pump relay (and thus the pump) at key-on to prime the system, then shuts it off until it sees ignition pulses when it sees ignition pulses, the relay comes on again Every Chevy and GMC truck made since 1987 has this feature. If the pressure drops below 4 PSI the fuel pump shuts off. There are quite a few other vehicles that are like this... I just am not familliar with which ones. -Tony > > Had a friend working in a garage many years ago. One day a woman came in > > with her son. She had purchased the car for him and it needed it's first [quoted text clipped - 13 lines] > because of no oil pressure. > Bob >:|Every Chevy and GMC truck made since 1987 has this feature. If the >:|pressure drops below 4 PSI the fuel pump shuts off. There are quite a >:|few other vehicles that are like this... I just am not familliar with >:|which ones. >:| >:|-Tony if you look at the schematic, the oil pressure switch is just a backup for the fuel pump relay. as long as the relay is functioning, the OP switch is basically bypassed. -Bret >:|"Bob" <bob@nospam.com> wrote in message news:<10ksjj0dvc4mn56@corp.supernews.com>... >:|> > Had a friend working in a garage many years ago. One day a woman came in [quoted text clipped - 14 lines] >:|> because of no oil pressure. >:|> Bob > Every Chevy and GMC truck made since 1987 has this feature. If the > pressure drops below 4 PSI the fuel pump shuts off. There are quite a > few other vehicles that are like this... I just am not familliar with > which ones. > > -Tony Well.... no they don't, at least not if the fuel pump relay is working right. That fuel circuit through the oil sender is a backup circuit in case the relay fails. Bob So that explains how it is done now. I remember 1975 cars that ran power for the pump though the oil pressure switch. > Every Chevy and GMC truck made since 1987 has this feature. If the > pressure drops below 4 PSI the fuel pump shuts off. There are quite a [quoted text clipped - 20 lines] > > because of no oil pressure. > > Bob |
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