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oil pressure problem

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Old 12-30-2006, 12:11 AM
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Car: 89 Firebird
Engine: 355
Transmission: 700
oil pressure problem

My engine , 355, is in it third body.( finally found one I like) Since I installed it the oil pressure is acting strange. Under heavy braking, in a straight line, pressure drops to 0 and stays there til either I stop or let off the brakes.

This is where it gets strange. If I over fill a little over half a quart it is fine. I haven't pulled the pan yet but have looked in the pan with a scope. The pick up and shield seem to be in place.

While swapping the engine it wasn't put on the floor or banged around.

I know my next step is to check with a mechanical gauge, just haven't got to it yet.

Any clues?
Old 12-30-2006, 08:26 AM
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Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
Originally Posted by kyle folds
My engine , 355, is in it third body.( finally found

I know my next step is to check with a mechanical gauge, just haven't got to it yet.

?
that sound like a plan

it there any noise when the preasure drops?
Old 12-30-2006, 12:40 PM
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Sounds like the oil pump pickup fell off.

Oil does not respond well to "seem" kinds of things.
Old 12-30-2006, 08:43 PM
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Car: 89 Firebird
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no noise at all. I am thinking maybe something happened to the baffle and the oil is transfering to the front of the pan.

Guess I will plan a oil pan removal soon.
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