schube1255
TYF Newbie
I need some advice,
my tahoe drank some bad delaware gas and I havent serviced it in a while. It was running really rough and throwing codes. po300 - po 305 - po 172 - po175 - and oxygen sensor on cat. was bad.
I installed:
distributor cap and rotor -
new spark wire set -
new spark plugs -
oil change -
still ran like shit - rough idle and pressure changes
I took it to a mech and he said it was the fuel injector.
I replaced the fuel injector and fuel pressure sensor. lots of carbon buildup
Now it is tapping loud - but runs good - I did a compression test and read 190psi on 7 cylinder and 150 on #2 but it runs good just taps really loud and the tap isnt going away.
I pulled the valve cover and tested the pushrods and all looks good.
I dumped in a can of seafoam and it seems to be running good , It just taps or knocks really loud.
Any help would be greatly appreciated.
my tahoe drank some bad delaware gas and I havent serviced it in a while. It was running really rough and throwing codes. po300 - po 305 - po 172 - po175 - and oxygen sensor on cat. was bad.
I installed:
distributor cap and rotor -
new spark wire set -
new spark plugs -
oil change -
still ran like shit - rough idle and pressure changes
I took it to a mech and he said it was the fuel injector.
I replaced the fuel injector and fuel pressure sensor. lots of carbon buildup
Now it is tapping loud - but runs good - I did a compression test and read 190psi on 7 cylinder and 150 on #2 but it runs good just taps really loud and the tap isnt going away.
I pulled the valve cover and tested the pushrods and all looks good.
I dumped in a can of seafoam and it seems to be running good , It just taps or knocks really loud.
Any help would be greatly appreciated.
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