GM Top Engine Cleaner vs. Sea foam?
Thread Starter
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Joined: Jul 2010
Posts: 1,839
Likes: 20
From: NC
GM Top Engine Cleaner vs. Sea foam?
While working on my afterfire last weekend.. I noticed the vacuum off the manifold was erratic. With help of another forum member here, I am guessing it is a sticky valve. Engine appears to run fine, but I want to see if I can get the problem straightened out to get a good vacuum,
Any opinions of GM TEC vs. Sea foam out there? I suspect this is some carbon build up due to low use over the years. (10-20k miles since 1972)
Any opinions of GM TEC vs. Sea foam out there? I suspect this is some carbon build up due to low use over the years. (10-20k miles since 1972)
Racer
Joined: Sep 2007
Posts: 295
Likes: 2
From: Concordia KS
I fixed some sticking valves on a 200k mile V6 Camaro with a can of engine flush, ran it for 10 min at idle and then drained the oil. It made a big difference. I have never had much luck with Seafoam.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
They are about the same thing.
What worked for sticky lifters many yrs ago was tossing some trans fluid in the motor on top of the oil fill and run it for a few minutes then dump.
What worked for sticky lifters many yrs ago was tossing some trans fluid in the motor on top of the oil fill and run it for a few minutes then dump.
Thread Starter
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Joined: Jul 2010
Posts: 1,839
Likes: 20
From: NC
Le Mans Master
Joined: Oct 2010
Posts: 6,942
Likes: 850
From: melbourne florida
2023 C3 of the Year Finalist - Modified
for a stuck lifter, yes transmission fluid is a tried and true method. the seafoam should do better on a valve sticking and wont leave an oily residue on your intake.
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Burning Brakes
Joined: Apr 2009
Posts: 807
Likes: 2
From: VIRGINIA BEACH VIRGINIA
Just used the sea foam on my 79 and it really cleaned up the "sound" of the engine. It appears to run quite a bit smoother. Nasty smelling stuff when you use it and it creates quite a bit of smoke putting it in. Do it outside and alert the neighbors not to call the fire department.
