00 Pontiac Gran Prix 3800 series 2. Engine back from machine shop all spec'd out with mic's and plastigauge. I assembled with all new parts minus pistons, valvetrain and 4 rods. Summit Racing Stock rebuild... No fancy stuff. At startup I have no oil pressure. So shut down and research tells me that maybe the white lithium grease I packed in the new pump assy. is plugging it? I hope.... IS there any oil galley plugs I or machine shop may have overlooked? Like the LS motors next to oil pump?

Asked by May 24, 2015 at 09:42 PM about the 2000 Pontiac Grand Prix GT

Question type: Maintenance & Repair

No oil pressure / flow at initial startup. after 30 sec. crank to prime system. I fired and ran beautiful except valvetrain clatter. shut down after thirty seconds no change. new oil pan, new pickup tube, new pump assy. gasket and Loctite tube.. packed pump gears and passage with white lithium grease to lube and prime. Worried and frustrated and broke til payday.

1 Answer

67,375

The oil pump assembly should be packed with petroleum jelly (aka Vaseline) not white lithium grease as per pages 6-351 & 6-352 of the 2000 Grand Prix shop manual. If after doing that, pressure does not immediately build, you'll have to drop the oil pan and inspect the pick up screen and tube assembly. I'd also inspect the bypass valve, at the oil filter adapter, for sticking or damage. If unsure of it's condition, replace it. HTH. -Jim

Your Answer

Add photo

Related Questions

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,270
#2 Tom Demyan
Tom Demyan
Reputation 2,870
#3 munron
munron
Reputation 2,210
View All

Related Models For Sale

Used Chevrolet Impala
591 Great Deals out of 34,068 listings starting at $899
Used Pontiac Bonneville
4 Great Deals out of 511 listings starting at $1,799
Used Chevrolet Monte Carlo
20 Great Deals out of 1,419 listings starting at $1,995
Used Pontiac Grand Am
1,183 listings starting at $1,599
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Chevrolet Malibu
1,062 Great Deals out of 77,909 listings starting at $1,500
Used Honda Accord
946 Great Deals out of 77,735 listings starting at $899
Used Nissan Maxima
323 Great Deals out of 24,380 listings starting at $999
Used Chevrolet Camaro
242 Great Deals out of 31,193 listings starting at $369
Used Pontiac Firebird
4 Great Deals out of 768 listings starting at $1,791
Used Nissan Altima
1,156 Great Deals out of 79,666 listings starting at $500

Used Cars For Sale

2006 Pontiac Grand Prix GT For Sale
4 Great Deals out of 89 listings starting at $1,600
2005 Pontiac Grand Prix GT For Sale
114 listings starting at $1,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.