What kind of gasket to replace intake manifold?
What kind of gasket to replace intake manifold?
I cleaned the surfaces well, vacuumed all the dirt and crud away from the ports, everything came apart and went together pretty easy. Replaced intake manifold gaskets with Felpro gaskets, now it is idling very rough, still has the P0171 and P0174 codes, and will stall on occasion.
How much does it cost to replace intake manifold?
The lower intake manifold gasket fails and leaks coolant into the engine oil. I had the dealership replace the manifold gasket the first time at about 40,000 miles before it got to the point of leaking coolant into the oil. This cost me $1200, mostly for labor.
How to fix a leaking intake manifold in a Chevy?
Take off the plenum. Disconnect the PCV valve and push it out of the way. Disconnect the heater bypass hoses and clamp them off (or jam sharpie pens into the hoses, this works just as good as a clamp). Disconnect the thermostat by-pass pipe and remove it.
Why is my Chevy 3.1 liter engine leaking oil?
The Chevy 3.1-liter engine has a notorious weakness, a failure mode that GM will not cover after the warranty expires. The lower intake manifold gasket fails and leaks coolant into the engine oil. I had the dealership replace the manifold gasket the first time at about 40,000 miles before it got to the point of leaking coolant into the oil.
I cleaned the surfaces well, vacuumed all the dirt and crud away from the ports, everything came apart and went together pretty easy. Replaced intake manifold gaskets with Felpro gaskets, now it is idling very rough, still has the P0171 and P0174 codes, and will stall on occasion.
Can a Felpro manifold make a truck run rough?
Replaced intake manifold gaskets with Felpro gaskets, now it is idling very rough, still has the P0171 and P0174 codes, and will stall on occasion. The truck will run and drive smooth when you get going, but will run rough when my foot is off the gas at a stop. – Checked, double checked, triple checked all electric and vacuum lines.
Why does my Dorman intake manifold not idle?
It turned out to be from the EGR Valve. I confirmed this was the problem by closing off the EGR hole on the the Dorman Intake Manifold with a cap that came with the new intake and it idled fine and didn’t throw any check engine codes. The EGR tube under the valve was cracked from flexing it to get the Intake Manifold off. That was it.
How much does it cost to replace an intake manifold gasket?
Among the most commonly replaced parts, an intake manifold gasket could cost you over $600 in parts and labor. There are so many things that can go wrong with the manifold, especially if the gasket is compromised. This little gasket that sits between the engine and the intake manifold is supposed to be durable.
What happens if there is a leak in the intake manifold?
A tight seal is imperative for an intake manifold gasket. If there is a leak, the vacuumed air will throw off your fuel mix and cause the engine to run harder. Finding a vacuum air leak isn’t always easy, as there are other gaskets and places of weakness.
What’s the code for intake manifold gasket on a Silverado?
I am not a mechanic, but know my way around engines and like to wrench. I have a completely stock 2001 Silverado with the 5.3L and was getting codes P0171 and P0174 lean bank 1 and 2 during the winter. I read that the intake manifold gaskets are a common issue with these motors because the ethanol in gas eats away the OEM plastic gaskets.
It turned out to be from the EGR Valve. I confirmed this was the problem by closing off the EGR hole on the the Dorman Intake Manifold with a cap that came with the new intake and it idled fine and didn’t throw any check engine codes. The EGR tube under the valve was cracked from flexing it to get the Intake Manifold off. That was it.
