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#1
02-21-2004, 02:39 PM
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sorry... oil pressure
sorry.. i know there was already a post about this but i can't find it.
uh my guage shows a reading at idle of like "4" just above bottom redline(when warm)... and its a little above "40" when i'm driving... i dunno what it is but its been like that for a long time. 
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#2
02-21-2004, 08:31 PM
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Re: sorry... oil pressure
Quote:
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#3
03-08-2004, 09:53 PM
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Re: sorry... oil pressure
Changed oil lately?What weight are you running?Try a higher weight like 10w 40w with some Lucas oil treatment.
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#4
03-08-2004, 11:46 PM
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Had the same problem with my used 83 S-10 with 2.8 V6. I solved it by:
1. Cleaning up the PCV system and making it functional again. 2. Previous owner was using Valvoline - I switched her to Castrol GTX - 10W-40 (Winter) and 20W-50(Summer). 3. I replaced the oil pressure sending unit just for good measure. Now the engine with 136K on it has 20 - 25 psi at idle and 45 - 50 psi at speed when warmed up. Regards: Oldengineer
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#5
03-10-2004, 04:03 PM
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hey thanks.... i'll try that... but that sounds like a weird weight for the oil.
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#6
03-10-2004, 11:11 PM
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Don't know what year S-10 you have - be sure you check your owner's manual to see how heavy a weight of oil is reccomended for your engine. The two weights of Castrol I use are readiliy available at Advance Auto, Wal-mart, etc.
Regards: Oldengineer
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#7
03-11-2004, 04:48 PM
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i have a 92 with a 2.8
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#8
03-11-2004, 11:15 PM
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Like I said - check your owner's manual to see what the heaviest oil is you're allowed to use. Also, if your truck has a temp gauge, make sure its not running a little hot - that'll lower your oil pressure too. My S-10 has a nasty habit of eating themostats - I've had 2 fail in 2 years and boiled her over. I just put a new radiator in mine - that brought the oil pressure up at hot idle about 5psi. Old one was badly plugged up and leaking quite a bit.
Good Luck: Oldengineer
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