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#1 |
Registered User
Join Date: Oct 2002
Location: Portland OR.
Posts: 86
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Oil Pressure?????
Got a small block in my truck and was driving it the other day and it started tapping and carry on, lost oil pressure. So I had it towed back home since I thought it was gone. Went to start it up today and the oil pressure is back and hasn't done much or make any noise. The oil pressure went up and down a couple of times but it acts as nothing happen. Bad oil pump, or main? Or needs to clean it out with a flush of some short?
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68 Chevy short wide air cab 4/6 on the drop 327 small block Front disc Frame "c" sectioned Gaylord bed cover |
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#2 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: Oil Pressure?????
You checked the oil level?
How long since last oil chainge? It may be a gonner, but I'd start with the simple stuff first. |
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#3 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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Re: Oil Pressure?????
a lot of times when that happens its a loose pick up tube on the oil pump. it will bounce up and down while driving and destroy your bearings in the process of dropping oil pressure.
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#4 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Oil Pressure?????
I've seen smook clog the screen, till you shut the engine off. Once shut off, the smook will fall away from the screen and oil pressure will return. Then later, it will eventually get sucked back up and do the same thing over again.
Lots of mid 80's Ford V8's did that. Nothing says fun like laying on your back pulling oil pans either.
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I'm on the Instagram- @Gearhead_Kevin |
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#5 |
Senior Member
![]() Join Date: Feb 2004
Location: Williamsburg, Ohio
Posts: 1,783
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Re: Oil Pressure?????
you will notice a loose tube most when stopping like at a stop sign, had a 66 GTO that did that. Is your oil filter plugged?
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#6 |
Captain Ed
Join Date: Jul 2003
Location: Port Charlotte, FL
Posts: 1,241
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Re: Oil Pressure?????
Just replaced a motor in a company truck for the same thing. The motor was so clogged with coked up oil that the oil would build up in the top end of the motor until the pan was dry. Wait a few minutes and start it back uo ant the oil pressure was back.
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If you ain't bleedin', you ain't workin'! 1999 C3500 LS 7.4L |
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