Help with miss
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New User
Joined: Feb 2017
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Help with miss
HELP......I have a miss on acceleration. Have chang d injectors, distributor,plugs,wires, fuel pump,sending unit, fuel tank, fuel filter,O2 sensor and tps sensor. It runs better but still has a miss. Any help would be great.
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Welcome to FTE
You're on the right track. First thing, always perform a cylinder compression test. Maybe you know this already. A lot of guys will recommend a leakdown test. A vacuum gauge is also one of the most useful tools, and they aren't used much anymore. But these tests will show the mechanical health of rings and valves, whether timing is off, exhaust restriction, and a bunch more, and eliminate them as a source of trouble.
You're on the right track. First thing, always perform a cylinder compression test. Maybe you know this already. A lot of guys will recommend a leakdown test. A vacuum gauge is also one of the most useful tools, and they aren't used much anymore. But these tests will show the mechanical health of rings and valves, whether timing is off, exhaust restriction, and a bunch more, and eliminate them as a source of trouble.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Use a stethoscope to verify each fuel injector is opening. A length of hose or some other object may work too. If they all check out you should pull the plugs again to see if any are showing signs of a lean mixture. Perhaps one is plugged or weak.
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Thank you rla 2005, turns out #6 injector wire was bad. Runs like a new truck now (it should with everything I've replaced)
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Post Fiend
Joined: Apr 2002
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From: Waterloo, Iowa
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