What causes Silverado to have intermittent no crank?
What causes Silverado to have intermittent no crank?
I’ll be honest with you, finding the cause of a Silverado intermittent no crank condition is no fun. It’s a complicate these that involves multiple switches and three computers. All the signals have to line up before the Electronic Control Module (ECM) will ground the starter relay.
What to do when your Chevy Silverado won’t start?
When a starter goes bad, they will usually not give you much warning first. Also, if you are stuck somewhere and are trying to start your Silverado, the old beat the starter with a hammer trick is not a wives tale. It really can get that one last start out of it.
Why does my GM car say no start no crank?
How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.
How does the IGN switch work on a Silverado?
When you turn the key, the IGN switch acts as a signaling device. It receives a 5-volt reference signal from the body control module (BCM). When you turn the key to the START position, the IGN switch contacts close and the BCM seen the 5 volt signal as a START REQUEST.
I’ll be honest with you, finding the cause of a Silverado intermittent no crank condition is no fun. It’s a complicate these that involves multiple switches and three computers. All the signals have to line up before the Electronic Control Module (ECM) will ground the starter relay.
How can I check battery voltage on my Silverado?
If you don’t see battery voltage on the purple wire A terminal on the starter, use a scan tool or DVOM and wiring diagram and check for IGN switch contact closure at the IGN terminal on the BCM. Next, check for voltage in on the park/neutral switch and ground out. Then check for voltage in and ground out on the IMS switch.
When you turn the key, the IGN switch acts as a signaling device. It receives a 5-volt reference signal from the body control module (BCM). When you turn the key to the START position, the IGN switch contacts close and the BCM seen the 5 volt signal as a START REQUEST.
What causes a car to have a no crank condition?
Problems That May Cause a No-Crank Condition 1 Undercharged or failed battery 2 Corroded or damaged connectors or wires 3 Bad camshaft or crankshaft sensor 4 Failed starter motor or solenoid (relay) 5 Bad ignition switch 6 Bad or misadjusted neutral safety switch 7 Engine mechanical problems
What to do if engine won’t Crank over axleaddict?
The electrolyte should cover the cells completely, or reach the bottom of the fill rings at the bottom of the openings. If necessary, add distilled water to bring the electrolyte back to the proper level. If the previous check didn’t turn out anything wrong, check the proper operation of the starter solenoid or relay.
Is there a GMC Sierra that won’t start?
I have a 2010 GMC Sierra 2 door pick up that won’t start ans is saying to service theft deterant system. I replaced the battery and the truck started and ran fine. No it won’t start again. Any ideas?
Why is my Chevy 2500HD no start no crank?
Finally I ended up having it towed to the Chevy dealer I bought it from. First they said they believed it was a communication problem with the computers, but wasn’t exactly sure what was wrong. Later in the day they called and said the fuse box was the culprit, and I needed a new one. I had them put it in, and everything seemed ok.
What happens when you turn the no start no crank key?
The first time it ever happened, you turned the key and nothing would happen. No crank. It had full electrical power, but I thought I’d jump it anyway. The jump pack had absolutely no effect. Then I thought maybe it was the anti theft. So I locked and unlocked the doors 3 times with the fob. Nothing.
