Can a leaking intake manifold cause fuel injector problems?
not exactly it will cause a vaccume leak and therfore cause the computer to compensate but not directly hurt the fuel injectors
What's under the intake is not a hose, it's a pipe which a hose attaches to behind the intake manifold near the firewall. If the hose is leaking, it's a relatively easy task to replace it. If the pipe is leaking, you will have to remove the intake manifold which is not an easy task (minimum 6 hours to remove and replace the manifold!)
vortech Chevrolet's had a lot of problems with the intake leaking internally and externally. And no stop leak of any kind wont help. You cannot fix mechanical problems with any thing that comes in a bottle. The 4.3 and 5.7 are well known for intake manifold leaks. mite not be your problem but very possible. vortech Chevrolet's had a lot of problems with the intake leaking internally and externally. And no stop leak of any…
If it runs fairly normal once it starts and you're getting fuel into the crankcase, it's PROBABLY a leaking injector. After the engine is shut off there is still pressure in the fuel line. If the injector leaks, fuel will drip down into the intake manifold. If a cylinder has an open intake valve, the fuel will leak into there and find it's way into the crankcase.
I had that happen once. That's a bad thing. That's either cracked head, blown head gasket, or cracked block. Not necessarily. The intake on some vehicles, especially late models, the coolant circulates thru the intake manifold. You could have a leaking hose or leaking manifold gasket. You would have other problems like cooant in the oil or oil in the coolant if you had a cracked head/block or a bad head gasket.
maybe it's not the intake gasket. Maybe it is the intake manifold itself, they were bad about cracking. Also there is a coolant line that runs under the manifold that likes to leak as well. It's more likely to be a ruptured/cracked intake manifold as this is a common problem on these cars. See detailed info on the problem (and how to fix it) here: http://www.autoclinix.com/Manifold.htm
If you are talking about the EXHAUST manifold then most of the time it's the valve cover gasket that is leaking oil. REPLACE VALVE COVER GASKETS. If you are talking about the intake manifold then it has 2 rubber gaskets in the front and rear of it that leak oil real bad. If oil is on the left are right top sides of the intake manifold were the valve covers are then it will be…