1993 Ford Ranger EGR valve question

1993 FORD RANGER
89,000 MILES • 4 CYL • 2WD • MANUAL
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FISHINDINO
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The number 3 cylinder is not functioning. It is a California emissions vehicle. Would a faulty EGR valve cause this? It would work some then quit, now it will not work at all.
Mar 12, 2009 at 11:49 PM
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RASMATAZ
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The number 3 cylinder is not functioning

What do you meant by this-is it firing or what ??? I don't think the EGR valve will cause a cylinder not to function properly
Mar 12, 2009 at 11:55 PM
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FISHINDINO
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It is not firing.
Mar 13, 2009 at 12:34 AM
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RASMATAZ
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If there's no spark-check the plugwire or swap for a working one and see what happens
Mar 13, 2009 at 12:41 AM
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FISHINDINO
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I already changed plugs and wires. I also replaced both coil packs, no change.
Mar 13, 2009 at 1:55 AM
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RASMATAZ
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Check and test the crankshaft positioning sensor in right front of engine bay.


https://images.2carpros.com/forum/automotive_pictures/12900_cps1_8.jpg

Mar 13, 2009 at 2:19 AM
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FISHINDINO
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I will check it out, and let you know. Thanks
Mar 13, 2009 at 2:51 AM
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FISHINDINO
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I was misinformed, it is firing, just no compression on the number 3 cylinder.
Mar 13, 2009 at 3:21 AM
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RASMATAZ
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No compression on no.3 could be valves/rings/cyl wear
Mar 13, 2009 at 10:35 AM
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