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92 c1500 no fuel no spark no start
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tracymrhd
Novice
Jan 11, 2017, 9:23 AM
Post #1 of 15
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92 c1500 no fuel no spark no start
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This truck is starting to drive me crazy. It is a 92 c1500 4.3 liter no start no fuel no start. I have replaced the fuel pump, fuel pump relay, distributor assembly. have power going into distributor but no spark goin to spark plugs. also have jump the oil pressure switch and still no start. have power to fuel pump relay and ecm signal at fuel pump relay.
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Discretesignals
Ultimate Carjunky
/ Moderator
Jan 11, 2017, 10:45 AM
Post #2 of 15
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Re: 92 c1500 no fuel no spark no start
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Does the ignition rotor spin when you are cranking the engine? Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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tracymrhd
Novice
Jan 11, 2017, 10:47 AM
Post #3 of 15
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Re: 92 c1500 no fuel no spark no start
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yes I have compression so I know timing chain is good or could the cam, or cam gear break I will have to check when I get home
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kev2
Veteran
Jan 11, 2017, 11:25 AM
Post #4 of 15
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Re: 92 c1500 no fuel no spark no start
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pink wire at coil 12v ? red and wht wire at inj 12v? If those are good suspect ICM.
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tracymrhd
Novice
Jan 11, 2017, 12:35 PM
Post #5 of 15
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Re: 92 c1500 no fuel no spark no start
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Ignition control module? where is that located?
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 11, 2017, 12:40 PM
Post #6 of 15
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Re: 92 c1500 no fuel no spark no start
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What do you mean by "no fuel"? No fuel pressure? no injector pulse? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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tracymrhd
Novice
Jan 11, 2017, 1:17 PM
Post #7 of 15
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Re: 92 c1500 no fuel no spark no start
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nothing no injector pulse, no spark to spark plugs
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 11, 2017, 1:20 PM
Post #8 of 15
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Re: 92 c1500 no fuel no spark no start
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You should check codes but I would suspect a Crank Sensor circuit problem. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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tracymrhd
Novice
Jan 11, 2017, 1:30 PM
Post #9 of 15
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Re: 92 c1500 no fuel no spark no start
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never thot of that. I don't have a scanner that will do obd1
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tracymrhd
Novice
Jan 11, 2017, 1:31 PM
Post #10 of 15
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Re: 92 c1500 no fuel no spark no start
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did they use a crankshaft sensor back then?
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Hammer Time
Ultimate Carjunky
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Jan 11, 2017, 1:36 PM
Post #11 of 15
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Re: 92 c1500 no fuel no spark no start
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They didn't call it a Crank Sensor but the pick-up coil in the distributor did the same job as a Crank Sensor. Before doing that you need to confirm power supply to the coil and injectors and make sure your check engine light comes on for bulb check when the key is first turned on. When you hook up you scan tool look for an RPM signal when cranking. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Jan 11, 2017, 1:36 PM)
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tracymrhd
Novice
Jan 11, 2017, 1:47 PM
Post #12 of 15
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Re: 92 c1500 no fuel no spark no start
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how do I flash codes on the dash. I don't have a scan tool that will hook up to this vehicle.
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Hammer Time
Ultimate Carjunky
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Jan 11, 2017, 2:01 PM
Post #13 of 15
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Re: 92 c1500 no fuel no spark no start
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Jump A and B in the diagnostic connector. I don't know if a truck that old even monitors that circuit. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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kev2
Veteran
Jan 11, 2017, 2:21 PM
Post #14 of 15
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Re: 92 c1500 no fuel no spark no start
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you will need to test something suggested.... Does dist rotor spin? is there 12v on pink wire at coil? is there 12v at injectors red and wht wire. As suggested CODES.... All easy fast simple tests....and FREE
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tracymrhd
Novice
Jan 11, 2017, 2:50 PM
Post #15 of 15
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Re: 92 c1500 no fuel no spark no start
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thanks for all the info. I will check this stuff out tonight.
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