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Chevy S10 - GMC S15 and Sonoma Oil Questions

33 messages,  Last post on Oct 14, 2009 at 9:15 AM

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#14 of 33 Oil Leakage 2.2 1994 S10 by lwh9854 May 29, 2007 (5:56 am)
#15 of 33 Oil Leakage 2.2 1994 S10 by lwh9854 May 29, 2007 (5:56 am)
I have a 1994 s-10 2.2 L, manual trans, 2 wheel drive, AC, 184K. I have an oil leak and am having a difficult time determining the cause. Generally doesn't use much oil. Seems to only leak when driving (under pressure). It appears as if it is coming from the right side of the engine slightly behind and below the oil filter. It is really hard to determine the location, but it is near the DIS ignition modules. I understand the crankshaft sensor that works as a distributor is somewhere near the location. I do not know where the oil pressure sensor is located. At first glance it doesn't appear to be coming from the oil pan gasket, the valve cover gasket or the front or rear seal. It is also fairly clean around the oil filter. I don't believe there is an oil cooler on it (at least I couldn't find any hoses or anything near the oil filter or the radiator). Could it be a leak on the crankshaft sensor or oil pressure sensor? And where is the oil pressure sensor?
#16 of 33 OIL Questions, not really, it's about door hinges, and fuel by philscbx Nov 13, 2007 (4:14 am)
See my Point now? It Starts out an Oil Problem Question, and becomes a door hinge and dash light issue.
#17 of 33 S 10 Door Hinge Bushings by slkuhn Feb 10, 2008 (1:22 pm)
I need to replace the lower door hinge bushings on a 2001 S 10. Never done it! Any advise? Thanks, Steve
#18 of 33 S 10 Door Hinge Bushings by slkuhn Feb 10, 2008 (1:24 pm)
#19 of 33 Anyone heard of this? by azbigdog Jun 17, 2008 (5:50 pm)
I have a 99 GMC Sonoma 2.2 L4 has 150,000 miles on it. My son was driving it and said engine has a funny sound and was smoking. I tried to start truck and after several tries, got it started. Went for a short drive. Seemed to run okay for a while. Then engine started to run rough and finally die. Got it re-started and limped home. Noticed low oil pressure (approx 20 psi) and when I finally parked smoke came from under hood. Smoke is coming from upper part of engine. I looked for an oil leak but compartment seems dry. Oil level is normal. Oil change is coming due soon so oil is normal color. Truck is used mostly as a commuter and has mostly highway miles on it. Anyone have a suggestion?   Al Replies to this message: gonogo (Jun 18, 2008 10:11 am) azbigdog (Jun 19, 2008 12:57 pm) gonogo (Jun 20, 2008 8:11 am) and 1 more...
#20 of 33 Re: Anyone heard of this? [azbigdog] by gonogo Jun 18, 2008 (10:11 am)
Replying to: azbigdog (Jun 17, 2008 5:50 pm) Check the oil pressure with test gauge, but I think the engine is gone. My 99 runs 60 psi hot at 1500 rpm, rarely goes under 40 psi when idling hot. Replies to this message: azbigdog (Jun 19, 2008 12:57 pm) gonogo (Jun 20, 2008 8:11 am) azbigdog (Jun 20, 2008 1:29 pm)
#21 of 33 Re: Anyone heard of this? [gonogo] by azbigdog Jun 19, 2008 (12:57 pm)
Replying to: gonogo (Jun 18, 2008 10:11 am) Well, I did some more snooping around and discovered a crack in the upper part of the radiator. I replaced the radiator and coolant and then drove the truck. Something weird that happens is that the temp gauge will stay very low (approx 100 degrees) for the first 4 miles of driving then spike up to operating temperature then climb steadily to 235 degrees and above. (keep in mind it is 110 degrees outside) Also the oil pressure seems fine until the spike occurs then hovers around 40 psi while driving with drops to 20 psi at idle. I will replace the thermostat to see if this helps with the temp problem. The oil pressure issue has me a little worried. Is it possible to removed the oil pan for access to the oil pump without pull the engine out?   Thanks,   Al Replies to this message: gonogo (Jun 20, 2008 8:11 am) azbigdog (Jun 20, 2008 1:29 pm)
#22 of 33 Re: Anyone heard of this? [azbigdog] by gonogo Jun 20, 2008 (8:11 am)
Replying to: azbigdog (Jun 19, 2008 12:57 pm) I have read it is easier to pull the engine. I have never pulled a pan on the Sonoma, but have with other vehicles by removing the mount bolts and jacking it up. Replies to this message: azbigdog (Jun 20, 2008 1:29 pm)
#23 of 33 Re: Anyone heard of this? [gonogo] by azbigdog Jun 20, 2008 (1:29 pm)
Replying to: gonogo (Jun 20, 2008 8:11 am) Well, no need to pull the pan, found out the block is cracked and thus a new engine is required. Anybody know what a new/rebuilt engine for a 99 GMC Sonoma 2.2 L4 runs?   Al

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