Dead cylinder #5

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joejw 1982

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What would cause a dead cylinder only 1 after warm up I've replaced plugs wires coils cam sensor cleaned crank sensor checked push rods springs and rockers
 

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Goldie Driver

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What would cause a dead cylinder only 1 after warm up I've replaced plugs wires coils cam sensor cleaned crank sensor checked push rods springs and rockers
Cam/crank sensor ? :eek: On a 1982 ?

Oh, BTW - I think that PDF is not square related. :cool:
 

Ricko1966

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Check compression.
Edit. Didn't look at the picture just read the text.
 
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Im gonna say your compression for that cylinder is good looking at your picture. LS engine in the same picture I would look at the injector. Swap it for another and see if it goes to the cylinder you swap it to.
 

joejw 1982

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Im gonna say your compression for that cylinder is good looking at your picture. LS engine in the same picture I would look at the injector. Swap it for another and see if it goes to the cylinder you swap it to.
I did move it around and it stayed in #5
 

joejw 1982

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U did it's holding at 150
 

Sad Sack

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ECU?
Also is the electrical signal even getting to the injector?

Read this thread:

 
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Ricko1966

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Isn't 150 a good number for compression? Definitely not dead
I wasn't looking at the picture,just the text,I've done this and this and this. But wasn't thinking I needed to look at a picture too.
 
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Ricko1966

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Make a noid light. A piece of speaker wire,2 t pins 2 leds,wire 1 led in each polarity use the t pins to back probe the injector connector,see if signal drops out while running. Mine is extra long so I can put it under the wiper and watch while driveng. Put a timing light on #5 see if spark drops out hot. Also did this engine originally have AFM?
 

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