Lost all Oil pressure - Team Camaro Tech
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post #1 of 11 (permalink) Old May 2nd, 11, 12:47 PM Thread Starter
Brian
 
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Lost all Oil pressure

I was driving around town, and lost all oil pressure, I was thinking I was just low on oil, but it was not. Check guages light came on and I could hear the lifters making a slight noise.What could be causing this?

Last edited by BrianFol.; May 2nd, 11 at 12:57 PM.
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post #2 of 11 (permalink) Old May 2nd, 11, 12:52 PM
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Re: Lost all Oil pressure

Bad guage, broken line to oil guage, broken shaft on oil pump, bad pum....number of causes. Any unusual noises? Gotta get it resolved. Don't run it till you do.

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post #3 of 11 (permalink) Old May 2nd, 11, 12:57 PM Thread Starter
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Re: Lost all Oil pressure

Check guages light came on and I could hear the lifters making a slight noise.
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post #4 of 11 (permalink) Old May 2nd, 11, 01:25 PM
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Any idea what kind of engine is in this vehicle

Lots of things can cause it - but, since you didn't hear horrendous noises following the departure of the pressure ... I would doubt it's a major mechanical failure at this point.

1st would be to confirm the actual galley pressure via a test gauge hooked into one of the direct oil pressure ports.
At that point - if any pressure or really none at all - you will know what has to be done next;
* fix monitoring system (gauge, light et.all)
* remove distributor to check pump drive shaft and connection
* pull pan to check internals

I would doubt the pump drive shaft, from the bottom of distributor to the pump, has 'broken' - unless you have a modified high pressure/high volume pump that is (was) really stressing the link.

More likely would be the pump has fallen off (it happens more often than you'd think ), the pump body itself has failed (common with poor quality replacement units) or ... the oil pump Pick-up assembly has just fallen off the pump body.
If the pick-up was not secured to the pump body they will often 'wiggle' or vibrate out of the pump and fall into the bottom of pan.

I'd run the engine as little as possible until you confirm what the cause is ...

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post #5 of 11 (permalink) Old May 2nd, 11, 01:47 PM Thread Starter
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Re: Lost all Oil pressure

it is 3.4L engine, I have not run the engine after this has happened.
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post #6 of 11 (permalink) Old May 2nd, 11, 02:00 PM
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Wink Re: Lost all Oil pressure

What year?
(Distributor or not)

With dist. the base of dist. drives pump, with-out dist. there is a drive stub to drive pump ...

The drive system is not easy to get to an the 3.4 (or any of the other engines like it) - so if you're not a good mechanic (and don't have the puller for the non-dist models) I would suggest you get someone who is involved with the repair work ...

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post #7 of 11 (permalink) Old May 2nd, 11, 02:06 PM Thread Starter
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Re: Lost all Oil pressure

it is 1995 3.4l v6, I maybe about to fix it myself, I just put the engine in about 2 months ago but it was used
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post #8 of 11 (permalink) Old May 2nd, 11, 02:11 PM
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Re: Lost all Oil pressure

Okay ...
So no distributor ...

Get the service manual and follow the steps to troubleshoot and fix carefully.
There are lots of little steps to get the drive stub out and then pull the pan and deflector (windage tray) etc. to access the pump.

Do a full oil pressure test with a seperate gauge before going any futher - you need to know what the rail pressure is before trying to 'look' for the issue

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post #9 of 11 (permalink) Old May 2nd, 11, 02:16 PM Thread Starter
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Re: Lost all Oil pressure

yea i have not yet been about to get the oil pressure tested.
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post #10 of 11 (permalink) Old May 2nd, 11, 04:22 PM Thread Starter
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Re: Lost all Oil pressure

I just went out and started the car and I had oil pressure, SO I don't know what to do drive it to see if will go back down to zero?????
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post #11 of 11 (permalink) Old May 2nd, 11, 04:56 PM
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Re: Lost all Oil pressure

Drain the present oil and add a good mineral based 10W40 oil and see what the gauge reads once the engine gets up into operating temperature.
Also, you might think about adding a mechanical gauge along with the OE gauge, even if its mounted in the engine bay.

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