Engine issues on non-Camaro, need help...
I am by no means a motorhead, I understand how they work, but not real deeply. Just wanted that out there upfront.
My son has a 2001 Pontiac Grand Prix, 3.1l engine. Took it in yesterday for tires and an oil change. Get a call with bad news. Intake manifold gasket is leaking externally on both sides, and oil has mixed internally with the coolant. There is oil in the radiator and overflow reservoir. They said the used oil didn't look overly unusual, but it was discarded or mixed with other used oil?
Also, there is a small diameter and short length hose from the front of the intake that is saturated with oilyness, so mechanic thinks it's been this way since well before last oil change. My son just takes to a quick lube and I'm sure they don't care or look that close.
They said they can replace gaskets, all hoses, chemical flush cooling system, etc. but don't know how long the engine might last cause the damage may have been done already (improper lubrication due to diluted oil).
So no warranty. I stopped in to see all this in person.
The car overall is in pretty good shape, but needs some other work like the tires, front brakes, tie-rod ends. All in all the rest not a huge deal. I do not have pics as it is still on their lift for the weekend while I decide what to do, and didnt think to take any while there.
Can I get your advice on what could be the future of this engine, what could be damaged already, etc.
I hate shopping for used cars in the $3-4000 price range. Like a box a chocolates. This car is decent but don't want to drop a chunk o change if the engine will fail soon down the road.
Thanks for your help!