Hey there I'm having a problem with certain circuits not recieving power. Specifically:
J7 H6 H7 F7 F8 F9 E1 E2 C1 C3 A1
I'm not sure why they aren't receiving power. And im still VERY new to working on cars and I need some help. Do I need to do some rewiring? Do I need to change the harness? What exactly do you guys think the problem could be?
Any help is appreciated I just want to be able to drive my car again
Year, Engine, etc? WTF Plug are you seeing a problem?
No power to Many circuits can be many things... Fuse, fusible links, some switches, etc.
------------------ Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should. (Jurassic Park)
Essentially. The car cranks but won't start. We thought it was the alternator so that has been replaced. But even after replacing it the car wont start up. And after checking the C500 we found that a lot of the wires aren't getting power. Both at idle and while trying to crank the car. I've stated which ones aren't getting power which would be
J7 H6 H7 F7 F8 F9 E1 E2 C1 C3 A1
So the car isn't recieving spark in the plugs. So I'm now starting to think it would be the coil pack has gone bad. And we checked the PCM or whatever that thing in between the seats behind the glove box is. And there is a Brown/Black wire that also isn't getting any power both while at idle and while cranking the car.
By "idle" I just mean with the ignition on.
Idk if that helps clear up what could be going on or not
Most all of the wires you mentioned do not have power unless that particular circuit is turned on.
Forget about them for now.
Did you test all of your fuses?
When you turn the key on, do you hear a click from behind you head, or the fuel pump run for a few seconds? Do you smell fuel at the throttle body? If you spray some starting fluid into the throttle body when cranking does the engine fire?
If you pull a spark plug and hook it to the plug wire, then lay the plug on the engine and crank it do you see spark?
Yes yes and idk. I'll try the starting fluid thing. But yes there is also a spark. It just won't crank. Here give me about an hour and I'll try spraying that fluid to see if the engine fires
To answer the questions. Number 1. It happened suddenly. I got home from my girls house and the next morning it just wouldn't start
Number 2. Its not the fuel pump, you can hear it start when you turn the ignition on
Number 3. Yes the engine will turn over. I checked the spark the other day and there was spark. But I haven't been able to look today. I won't be able to get to it until Sunday again. And then I'll be able to confirm again. But as of the last time I checked. Yes there's spark.
Forget the starting fluid, it's not going to magically fix you're issue.
Please confirm Does engine rotate when trying to start. Did you verify the spark plug has good spark?
Once we clarify the symptoms we might be able to point you in the direction of what the cause is.
No, it won't magically fix his issue, but it will tell if there is a fueling issue. He has already confirmed that the engine cranks over and there is spark.
As the OP stated, he doesn't know much about cars, or how to explain things. Did you read his entire posting?
Let us know what you find out Sunday when you get back to the car.
You should be able to smell gas when you're cranking the engine and it doesn't start. Pull the air filter off and you should see a spray of gas down into the throttle body.
I would suggest pulling the coil packs/ignition control module that the coil packs mount to and replace the crankshaft position sensor. It's the tube that goes into the block under the ICM.
The only thing in worried about now is that its blowing white smoke. But I replaced that head gasket already. And the oil looks fine. I'm hoping its because it sat for about a month and a half.
