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I have a 1993 ford ranger 4.0 v6 manual, I’m about 99% I need a new crankshaft position sensor so I bought one. However, I went to replace it but I can not find it anywhere, I’ve been looking through different forums and videos that are supposedly saying where it’s at but I can’t find anything that looks like the part that I got. The closest that I’ve found is that it’s either by the flywheel or by the crankshaft pulley, but I can’t see anything by the crankshaft pulley that looks like the part I got, and I can’t see around my flywheel enough to try and find it. I took a picture of the part that I ordered, if it’s the wrong part please let me know. And please let me know where the crankshaft position sensor is on my truck and what part exactly I need if that one is wrong. Thanks.
So at about the 10:00 position, it "reads" a spinning "gear" behind the pulley, so needs to be close but not touching the "gear", its a VR sensor so creates its own AC Voltage, 0.5vAC to about 8vAC
"Gear" is called a tone wheel or reluctor ring
Engine won't start if CKP sensor is bad
When you turn on the key the CEL(check engine light) should come on, that means computer has booted up OK
When you crank the engine to start the CEL should go OFF that means computer is getting a good signal from CKP sensor so will start spark and then fuel injectors
If CEL stays on then no signal from CKP sensor
CKP sensors generally don't fail, and if they do its an all or nothing failure, won't cause rough running, just a no start when they are broken