Main Seal!!!

[Zeckler1234]

Can a main seal failure cause a vacuum leak? My car is throwing the 1222 code and the mechanic I am working with thinks its the main seal. Please help asap!!

[Zeckler1234]

Please help! If the main seal is the problem I am just going to do it myself and not spend 600 for the guy to drop the tranny. I just want to make sure that the main seal can cause a vacuum problem..! Thanks!

[TobyB]

If you have a vacuum leak at the rear main, you also are driving the Exxon Valdez.

Otherwise, it's not the rear main.

t

[Zeckler1234]

So should I call the guy out?
My oil pan gasket is a little leaky can that cause a vacuum problem?
Mechanic says he sprayed brake cleaner near the trans and the rpm went up, keep in mind this car has a slush box.

[Zeckler1234]

If the rear main fails can that cause loss in pressure in oil pan?

[glnr13]

that's quite a job to hunt down a vacuum leak.

have you done a smoke test? are all your hoses in good shape? ICV? AFM? Throttle position sensor? O2 sensor?

[jlevie]

A leak at any seal or gasket of the block can result in an intake leak. A properly conducted smoke test will tell if there are any leaks.

A bad front (or rear) main seal is very unlikely to cause an oil pressure problem.

[crappycoco]

And its best to smoke the car cold (morning cold, not drive to the shop and leave it for an hour cold).