Why does my Silverado have no crank no start?

My son’s 2007 chevy silverado has a no crank, no start condition. The truck has a new battery. I verified the starter is operational, I swapped out the crank relay and checked the fuses which I thought were related to the cranking system (I guess it’s not called a crank fuse anymore).

When does a Silverado 2500HD won’t start?

Ran like a champ from June to November.. The minute the cold rainy weather came, have now had 5 times the truck completely dead, no start, no click, no fuel pump, Nothing. Couple of times, turn the key, put the truck in drive, back in to park, turn the key off, turn the key back on, truck starts up.

How to turn off starter on Chevy Silverado?

1 Turn OFF the ignition. 2 Disconnect the PCM harness connector. 3 Connect a DMM between the starter enable relay control circuit of the PCM harness and a good ground. 4 Turn the ignition to the START position.

Why are the dash lights not working on my Chevy Silverado?

When the AAA mechanic checked the battery it was fine. But the dash lights would not come no when the key was turned. Then they did but there was no effert to start. The engine might click but nothing else. The dome lights were bright and working. It was putting out a full voltage the mechanic said. But again the dash lights would not come on.

Why is my Chevy Silverado 2500 not starting?

While there are a variety of reasons your Chevrolet Silverado 2500 HD won’t start, the most common 3 are a dead battery, an alternator problem, or failed starter.

Can a Chevy Silverado start or crank over?

Chevy Silverado does not start or crank over. Chevy Silverado does not start or crank over. Welcome to JustAnswer. The pcm actually commands the starter to turn over on this vehicle.

What kind of car has no crank no start?

My son’s 2007 chevy silverado has a no crank, no start condition. The truck has a new battery. I verified the starter is My son’s 2007 chevy…

Hi folks, great forum! I have a 2004 Chevy Silverado 1500 Z71 with 180,000 miles. It has a no crank, no start condition. I have replaced the ignition switch thinking that was the issue, but it still has the same problem.

How to get a Chevy Silverado to crank over?

1 Turn OFF the ignition. 2 Disconnect the power train control module (PCM) harness connector. 3 Connect a test lamp between the Crank Voltage circuit of the PCM harness and a good ground. 4 With the transmission in park, or clutch pedal pressed, turn the ignition switch to the START position.

Why does my GMC Silverado have no crank?

This is a fix for a known electrical issue with the 2003-2007 C/K series GM Trucks where a bad ground causes multiple issues. Such as no start, no crank, intermittent no gauges, and sometimes the theft light would stay on, and the parking lights would stay on.

What to do if your Chevy Silverado won’t start?

Simple fix by checking the ground in the harness right behind the passenger side cylinder head. Trace the break and wire it to a new location for a ground such as the front of the cylinder head as I did. Loading…

What happens when no crank / no start / no blower?

When it no crank/no starts there is no sound except relays in the under the hood fuse box. Nothing at all from the starter. Battery putting out 12.5V and tests good.

My son’s 2007 chevy silverado has a no crank, no start condition. The truck has a new battery. I verified the starter is My son’s 2007 chevy…

How does engine cranking work on a Silverado?

The ECM supplies voltage to the IMS. If the IMS contacts are closed, indicating either park or neutral, the voltage then flows to the Transmission Control Module (TCM) and then to a ground point. If the ECM sees the proper voltage drop it will allow engine cranking.

Where is the starter relay on a Silverado?

Battery voltage also runs through the 175 amp fuse to the starter relay terminal #30 in the underhood fuse box. Terminal #30 is the input power to one relay contact. When the ECM wants to initiate Silverado starter crank operation, it supplies power to the starter relay control coil in the underhood fuse box on terminal #86.

Can a 2007 Chevy Silverado Crank over at all?

2007 Chevy Silverado will not start, crank over at all. Battery is fully charged. 2007 Chevy Silverado will not start, crank over at all. Battery is fully charged. – Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website.

Why does my truck have no power at all?

When I try to start my truck I have no power at all, no lights or anything. The fog lights will come on because they are hooked directly to the battery. Any ideas on where to start looking?

What to do if your truck won’t start?

I had te battery charged and had a load put on it and the battery is good. its the truck’s built in “run down protection” remove the leads from the battery that power the truck and reset the computer, happened to friends F*rd work truck, over 12v at posts and wouldn’t jump start until he pulled leads off and reset the ECM

What does it mean when a Chevy truck won’t start?

It has spark as evidenced by putting an old spark plug into a spark plug wire and grounding the plug After spraying a small amount of starting fluid into the air intake tube, the engine starts for just a moment, then dies Three or four years ago the truck had the Reduced Engine Power warning problem.

When does a Chevy Silverado have no power?

If you put it to the floor, it won’t rev beyond 4000 RPM. At ~2500 RPM with only enough throttle to maintain speed (transmission manually shifted to 3rd gear), it will surge and hunt. In OD at 55 mph (engine speed below 2000), it runs smoothly but has no power to run up hill or into a head wind.

When I try to start my truck I have no power at all, no lights or anything. The fog lights will come on because they are hooked directly to the battery. Any ideas on where to start looking?

Is there a problem with my Chevy Silverado?

Will turn key and it is like no power from battery to starter, but have lights, radio, etc. Turn key again or sometimes multiple times, to no avail. Then, turn it one more time and it starts. Then the next 15 starts, no problem. Sometimes hot engine, sometimes cold. UPDATE: 2-6-14; I sold the truck to my father. He changed the starter.

What’s the battery voltage on a Chevy Silverado?

When I turned the key to start the dome light did not flicker or dim in any way. Also, when the key was on, the battery voltage read about 12. When I turned the key to start, the gauge dropped down to 0 and stayed there until I released the key back to ON. Also, I keep the headlights on automatic with the selector switch.

What to do if your ignition cylinder is worn out?

How To Fix It: Fortunately, this is an easy fix. Just turn the wheel back and forth until the ignition cylinder is freed. It’s a fact of life that mechanical things tend to wear out, and the same goes for mechanical keys and key cylinders used in your car’s ignition system.

Why is my car not turning on when I Turn on the ignition?

Of course, if you access the car itself with your key, you likely won’t be able to turn on the ignition because of all those extra tumblers. And on the off chance that you do turn the ignition cylinder, the immobilizer won’t allow you to start the car, because it’s protected by one-in-millions of transponder codes.

What happens when the ignition switch is off?

Generally speaking, in the “OFF” position, the ignition switch doesn’t connect anything; in the “ACC” position, the radio or fan may be energized; in the “RUN” position, the engine control module is energized; and finally, in the “START” position, the starter relay is engaged. (These generalizations, depend significantly on year, make, and model.)

Can a bad ignition switch cause a Chevy Silverado to stall?

Your Silverado stalls because the faulty switch turns off the fuel pump or power to the ignition. When this happens, the engine will not be able to run until it gets that signal back. 2. Starts then Dies If your Chevy Silverado is starting right up, but then immediately dies, that is a very good indication that the ignition switch is bad.

How to reset anti theft system on a 2007 Silverado Fixya?

SOURCE: 1999 1500 Chevy Silverado – microchip for anti-theft? This bulletin is being revised to add information on inspecting for electrical intermittent conditions and important connector C201 tightening steps. Please discard Corporate Bulletin Number 01-08-56-002 (Section 08 — Body and Accessories).

What happens when you turn the ignition key in a Chevy Silverado?

Power the Accessories- This should be what you get when you turn the key to the first position. This allows you to use the power windows, radio, and any other accessory that is equipped in your Chevy Silverado.

Can a GM lock cylinder be made without a key?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. I know I can have a locksmith make a new key from the tumblers. My challenge is getting the lock cylinder out of the steering column without a key.

Why is my PassLock sensor not working on my Silverado?

Condition (s) may be due to an incorrect Passlock™ sensor voltage received by the body control module (BCM) from the Passlock™ sensor due to the following conditions. Most intermittent conditions are caused by faulty electrical connections or wiring. • Broken wiring inside the insulation.

Why does my Silverado 2500 HD not start?

I cannot find any information regarding recalls or service bulletins on the passlock (Immobilizer) system in your 2007 Chevrolet Silverado 2500 HD. The most common failure with this system is the theft deterrent module which is located near the ignition lock cylinder. Proper diagnoses should be performed before any repairs are attempted.

What to do if your car won’t start at PassLock?

A red (or yellow) “security” warning light will stay illuminated and the engine will either a) never start or b) start for a moment and then shut down. A temporary fix is to leave your key in the ignition, at the “auxiliary” position for about 10-15 minutes until the security light shuts off.

Why does my Silverado have no crank no start?