Chevy Spark Forum : Chevrolet Spark Forums banner
1 - 1 of 1 Posts

·
Registered
Joined
·
27 Posts
Discussion Starter · #1 ·
They own a 1999 Chevy Venture with 142k miles, The engine knocks real hard at random times. They have replaced 3 spark plugs and wires (They cannot reach the back 3 without taking out the engine). When they use a little higher grade gasoline it seems to run better MaxiSYS MS906. Do you think a product like Zmax, or Sea Foam fix it? They think that they are only running on 5 cyl.
 
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top