pgpgsr

2000 Grand Prix 3.8.

Can anyone tell me the difficulty of rebuild and exact location of the oil pump in this engine.

I know that I have to drop the pan, but would like more information.

BNaylor

What is your current mileage and what reason for rebuilding or replacing the oil pump? The hard part will be removing the oil pan.

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'08 Pontiac Grand Prix GXP - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'01 Buick Regal GS - L67 Series II 3800 V6 Supercharged
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged
Timeslip 08/12/06

AF Community Guidelines

pgpgsr

The car has 97,000 miles. At times all of the lifters begin chattering and the car misses. I feel that it is starving for oil. Batbee just be a partially clogged screen on the snorkle. I just want to have a back-up plan if the pan is dropped and nothing is found. We put Lucasoil in it and it seems to be getting better.

BNaylor

Well, if the oil pressure was too low you should get the low oil pressure light at the IP. Have you checked oil pressure with an external gauge? Also, what brand oil filter are you using and weight engine oil? That would be a lot of work to find out the oil pump or pickup wasn't the issue.

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'08 Pontiac Grand Prix GXP - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'01 Buick Regal GS - L67 Series II 3800 V6 Supercharged
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged
Timeslip 08/12/06

AF Community Guidelines

pgpgsr

We are currnetly running 10W30 with a quart of Lucasoil and STP filters. We have gone the other way with 10W40 with STP oil treatment. That was the wrong way to go.

wlkjr

I use Havoline 10W30 in my '97 with no other additives. Now has 345,000 miles on it and still doesn't use oil between changes of 5000 miles. I know a lot of people swear by these snake oils but I've never had the need for them.
You might want to visit the bobistheoilguy.com website and search for threads about flushing the engine. Can't remember the name of the product a lot of them use to clean the engine out but they claim good results.
If you have a miss in the engine it may not even be oil related and you would be going to a lot of trouble dropping the pan on one of these.

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97 Grand Prix GT 360,000 miles as of 02-01-09
01 Duramax/Allison