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06-07-2020, 04:54 AM | #1 | |
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Join Date: Jul 2005
Location: troy, Ohio
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Old 84 chevy farm truck loses oil pressure
This truck periodically loses oil pressure once warmed to operating temperature. I saw dash gage be intermittent and always thought it was electrical issue, or sending unit issue until last week it dropped out for longer and engine developed ticking, and eventually knocking. I check the oil level almost every time I use it, and it was half when this last bout happened. I have since overfilled the oil in hopes that the pick-up screen unit may have come loose, but last two times I ran engine (too scared to go anywhere) the oil pressure showed 40+, then drops off entirely after engine is warm. Start it up next day and have good pressure until warm again.
I know I have engine damage, rod knock, and am in process of looking for a used 350 at present, but was wondering if anyone else can advise me of what has happened.
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Automotive A/C Engineer with: '99 IH 4700 Toy Hauler (2) '95 GEO Prizms both maroon '99 GMC Yukon '95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller. '94 Astro- 370k miles '94 Firebird Formula- 5.7L 180k miles- gone- '92 Chevy Lumina Van 3.8L 264k '86 GMC S-15 - 2.8L 154k '87 Buick Park Ave . 187k '86 Buick Park Ave 3.8L 199k miles- gone '77 Chevy Vega- 2.5L 175k miles gone but not forgotten '68 Camaro 396 4 spd RS/SS -72k miles- |
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06-07-2020, 09:07 AM | #2 | |
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Join Date: Oct 2004
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Re: Old 84 chevy farm truck loses oil pressure
Probably wiped a bearing or the oil pump got weak.
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