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Chevy Blazer Oil Pressure problem

17 messages,  Last post on Nov 05, 2009 at 2:19 AM

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What is this discussion about? Chevrolet Blazer, GMC S-15 Jimmy, Engine, SUV

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#13 of 17 Re: 1991 S10 Blazer Blowing 25A AC / Heat fuse [jlflemmons] by rfletcher Aug 06, 2009 (11:45 am)
Replying to: jlflemmons (Aug 06, 2009 8:47 am) Thanks, and I agree on the fault clearing that way. It's going to be a lot of trouble but I think that I should take a more extensive look inside the two sections of harness at least near the connector. It's working fine now, but a truck with almost 200K miles probably has arteries that look a little like mine.   I need to correct myself on accessing the ECM. It was not the shelf under the dash but the kick panel below that was removed. Still a miserable job, out and back in. Also, the other wire in the connector was not circuit ground. Still more reason to look further down the line. Intermittent problems can make you crazy.
#14 of 17 gauge probs by allen30 Aug 16, 2009 (9:43 am)
I have a 99 blazer the gas gauge doesnt read right {just what ever it wants to).`Oil gauge reads according to rpms, speedometer moves up some while in park as to rpms. Is the a bad ground? Replies to this message: norblazer (Nov 05, 2009 2:19 am)
#15 of 17 high oil pressure 99 blazer 4.3 by odaat Oct 03, 2009 (12:13 am)
recently when i start the engine i hear a slight ticking noise from the engine,and the oil pressure climbs to 60, (it is normally40) /after a few miles the pressure will return to normal / speculation is perhaps the oil pump is bad, or i should try a different viscosity oil perhaps 5w/30 / anyway this is a baffling problem, do you have any suggestions, thanks Replies to this message: jlflemmons (Oct 03, 2009 6:48 am)
#16 of 17 Re: high oil pressure 99 blazer 4.3 [odaat] by jlflemmons Oct 03, 2009 (6:48 am)
Replying to: odaat (Oct 03, 2009 12:13 am) What are the outside temps? Not likely the oil pump, try an oil change with Castrol or Valvoline 10W30 and AC Delco PF52 (high capacity) filter.   How many miles on the engine?
#17 of 17 Re: gauge probs [allen30] by norblazer Nov 05, 2009 (2:19 am)
Replying to: allen30 (Aug 16, 2009 9:43 am) My sisters '91 Blazer does the same thing. The gauge kinda act like a RPM gauge. Did you find out what your problem was?   Her also seem to just stop for no reason. It will stumble and die. A day later it's fine again like nothing has happened. It seam to come and go. Sometimes she can only drive for like 5min before it start to stumble and want to die. Others it will be fine for a week.

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