No crank, no start?

Hi Joe,

I have searched for two days trying to find a ground on the engine on the passenger side (unless it is a ground on the fire wall). Can you confirm where the ground is in a 2001 Silverado 1500HD?

I took my starter out and confirmed that it is good. But I still don't have power to the trigger wire to the starter.

Best regards,

Ron

I found it. I will have to take the intake manifold off to get some room to get to it. I will let you know what I find out.

Hi Joe,

I got the intake manifold off and got to the ground and tested it. It was at the very back on the left hand side of the engine block. The wire isn't cut and has continuity from the connection at the ground to the 85 post in the fuse box. It was getting dark and I called it a day. I didn't take a detailed looking at where it is connected to the engine block. Tomorrow I will take some 40 grit sandpaper and cleaned the area where it attach to the engine block and the connector. Is there anything else I should do?

Ron

Joe,

Today I took some 40-grit sandpaper and sanded the area where the ground attached to the engine block. When I attempted to sand the attachment on the end of the wire, it came off the end of wire.

I attached a new end to the wire and then tested it for continuity and it tested fine. I have attached it to the engine block and reinstalled my intake manifold. I put on a new shift cable and when I tried to put it on neutral, there was an issue. So, I need to get that fixed before I can start the car.

Ron

Joe,

After all that the truck will not start. So, I have confirmed that there is no break in the line to the ground and the trigger wire. I got a new starter, and I tested it with some jumper cables and a screwdriver, and it works and I have a new relay for the fuse box.

What should I check next?

Joe,

Today I went out and with the key not in the ignition switch, I jumped 30 and 87 and the start engages. To confirm that it was the started I took the purple wire off and it had power. So the starter engages when 30 and 87 are jumped when the key isn't in the ignition switch. Do you think this points to the PCM?

Ron

Hi Joe,

After seeing that there was power to the trigger wire on the starter, I decided to put it back on the starter and asked my wife to turn the key while I jump 30 and 87. When we did that, the dashboard lost all the lights in the interior. I got into the side electrical panel and was searching for a blown fuse, and I didn't find any. But while I was doing the, the dash came back, and it dinged when the key was turned. I asked my wife to come out and try again. When I jumped the wife from 30 to 87 the same thing happened again the interior lights went out. When I tested the post in 30, I got 12.57 amps there was power now in 87, somewhere about 8 to 9 amps. Can you please answer me and give me your opinion about what is going on?

Hi Joe,

I cleaned up the post on the battery.
I put the new relay in and tried to start the truck but it didn't start. I had my wife start the truck while jumping between 30 and 87 and the truck started. So, cleaning off the grounds at least helps with the truck to start. So, what does that mean if it won't start with the relay but jumping 30 to 87?

Another thing is that I bought an AC Delco transmission cable. But it came without a retaining clip. I can't find any videos of how to install it. Do you know how?

Ron

Hi Joe,

I got the shift cable fixed. So all I need is next steps to go with my truck starting by jumping 30 and 87. Does that point to the PCM?

Ron

When we turn the key there is power to 86 it lights up. But there isn't continuity to ground at 87. I had continuity at 87 before when I had the intake manifold off before. How do I go about fixing the ground?

Okay Joe,

Pin 85 had power when the key was turned. Pin 86 did not have continuity. It had continuity the last time I had the intake manifold off. You said before when a load was put on it the ground would fail. How do I go about getting the ground fixed, so it won't fail?

Ron

Hi Joe,

I cut the ground wire to where I could detect continuity and then added wire to the end, testing continuity as I went along. I put the truck back together in the engine compartment and test continuity at the ground. I put a new relay in the fuse box and turned the key. The truck didn't start. I had my wife turn the key and I could feel the relay clicking when the key was turned on and off. I checked continuity to ground and it was positive.

Looking at power I, I have power at Pin 30 and when the key was turned at 87. I have confirmed that there is continuity to the ground and the relay is clicking when the key is turned.

Now that the relay is clicking what would cause the truck not to start?

Ron