Best Answer

Probably the intake manifold gasket needs replacement. Since the engine has large amount of oil under the intake manifold, and its gaskets are all that keeps the oil out of the intake manifold's vacume, that is a reasonable place to start thinking about. The PCV, ( positive crankcase valve ) could be stuck as well. That's easily checked by unplugging it from the engine and shaking it, and put your finger over the end of it with the engine idling. That valve is a very simple device, generally speaking, if it rattles when you shake it, and you can feel some vacume when you cover its engine side with your finger, it's OK. It has two manners of operation. It blocks the high engine vacume on deceleration, and allows some suction through the engine to reburn any blowby instead of allowing it to escape into the atmosphere.

User Avatar

Wiki User

โˆ™ 2007-12-08 05:04:11
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What causes oil to be in the throttle-body of a SPF injection GM 3800 engine?
Write your answer...
Related questions

Will a 91 Buick Regal engine fit into a 91 Buick Park Avenue?

If they are the exact same engine (3800 tuned port injection) then yes.

What is the difference between the 3800 series II engine and the 3800 Series III engine?

About 20hp.

What cars will fit a 3800?

Alot of buick regals and lesabre's came with the 3800 engine

What size is the 3800 motor on 2007 G6 3.5 or 3.9?

A 3800 engine is 3800 no mater what is mounted in. But a 2007 Pontiac G6 does not have a 3800 it has a 3500 (3.5L) V6.

What is the difference between the 3800 series 2 and 3800 series 3 gm engine?

About 20hp.

Does a buick park ave 3800 engine have a timing chain or rubber belt?

The 3800 V6 has a timing chain.

Where is the knock sensor located on a 95 oldsmobile 98 with a 3800 engine?

The knock sensor is located on the 95 oldsmobile 98 with a 3800 engine under the midpoint of the heads.

What does the side mark 3800 SE stand for on the Pontiac Grand Prix?

"3800" indicates that the car has the 3800 Series II V-6 engine (3.8L). The SE is the trim level which decodes as "Standard Edition." GP's without the 3800 badge are equipped with the base 3.1L V-6 engine.

What model cars carried the 3800 supercharged engine?

the GTP model has the supercharged engine in it

What is the oil capacity of a 1996 3800 engine?

The capacity of a 1996 engine is about 14 gallons

Buick 3800 supercharged engine regular or premium fuel?

The 3800 engines with the superchargers require premium gas. Higher octane fuel prevents engine from self ignition of oxygen and gas causing engine misfire.

What would a 1998 contour new engine cost?

about 3800

What is the torque on head bolts for a 3800 Pontiac engine?

The 3800 Pontiac engine had bolt torque specification is 160 pounds. The head bolts should be torqued in 40 pound intervals.

How to replace intake manafold on V6 3800 engine?

Ineed the torque sequence and tightening specs for a 92 GM 3800 intake.

Were is the fuel pump on a 1988 Oldsmobile 98 brouham 3800 engine?

Mounted on the engine block.

What type of freon goes in my 89 Bonneville with a 3800 engine?


Buick Regal 3800 engine oil capacity?

4.5 qts

Can you put 3800 2 engine in 1998 Monte Carlo?


Which years will fit a 1995 Buick 3800 engine?

years from 89-99 the 95 3800 will fit those cars will even fit into the olds royale series same engine good luck!

Where is the power steering reservoir on 2002 buick park avenue 3800 engine?

On the back side of the engine

Where is the cam sensor on a 1991 olds 3800 engine?

on front of engine below water pump pully

What other size engines will fit in a grand prix other than the original 3800?

3800 s2 is nice engine, and you could really place any engine in there with a large amount of modifications including chasis, mounts, trans and what not. If your vehicle came with the original 3800, that's the only engine you can replace it with without replacing tons of things.

What causes a 1995 Oldsmobile to knock?

3800? It needs a new harmonic balancer.

Dexcool and a Chevrolet 3800 V6?

What was the situation with DexCool and the Chevrolet 3800 series II engine and how do i get the replacement intake manifold from Auto-zone and what is the part #

How do you know if you have a 3.1 or a 3.8 transsmition?

The car body has two "3800" badges on the front quarter panels if you have the 3800 engine. 3100 models have no badges. The badges indicate the engine size which matches the transmission paired with it.