View Poll Results: How many injectors to replace
Just the bad one.
6
24.00%
All the ones on that bank
0
0%
All 8
16
64.00%
I have no clue
3
12.00%
Voters: 25. You may not vote on this poll
How many injectors do I need
Thread Starter
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Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
This is quoted from Dave at Swamps....
........"and the truck has around 175,000 miles on it, then the poppet valves are probably shot.
when the oil gets hot (and thin) a worn poppet valve, even on only one injector, can & will cause low oil pressure (ICP) to ALL of the injectors, as that one worn poppet valve can **** enough oil back into the valve covers to drop the entire system pressure.
If the truck runs good while cold, and runs like crap when hot, then that is textbook poppet valve wear, and an indication that the injectors need new poppet seats cut, and new (poppet) valves lapped...very similar to a valve job on a cylinder head."
With 170K, you may as well do all 8. I have seen first hand what happens with worn out injectors.
........"and the truck has around 175,000 miles on it, then the poppet valves are probably shot.
when the oil gets hot (and thin) a worn poppet valve, even on only one injector, can & will cause low oil pressure (ICP) to ALL of the injectors, as that one worn poppet valve can **** enough oil back into the valve covers to drop the entire system pressure.
If the truck runs good while cold, and runs like crap when hot, then that is textbook poppet valve wear, and an indication that the injectors need new poppet seats cut, and new (poppet) valves lapped...very similar to a valve job on a cylinder head."
With 170K, you may as well do all 8. I have seen first hand what happens with worn out injectors.
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