Car shut off while driving. Cranks but won't start.

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Fuel pump sounds like it's making noise. Battery's good. Checked fuel shut off switch. Any suggestions would be great. Thanks in advance. All dash lights came on then car shut off right away while driving. My dad was driving this is what he told me.


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I'm guessing fuel pump. If it were a fuse would it shut off the car while driving? Come on where's all the super Marauder problem solvers at tonight? I can't find anything in the useless search bar!!!!

[ChiTownMaraud3r]

Either fuel pump or just bad connection at the battery. I had this happen to me once while at WOT. The car shut off lights came back on and was able to start it while still coasting in neutral, but once I parked it wouldn't start, dash lights still came up just couldn't start the motor until i cleaned the dirty connections.

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I found a few things out. The AL DL doesn't work should always be able to hook a scan tool up check engine light doesn't come on when turn the key on two out of three ignition switch fuses don't even have any power going to them. And car will not crank at all no security light

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One key was blocked from the security system from cranking too much. could it be possible that's happened to the second key and if so is there any way to reset them

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And where dose the Aldl get it's power from?

[whitey]

Try looking at the pcm diode in the fuse box under the hood. Remove it, and put it back in. Richardp had a similar problem and i think the contacts were dirty/ corroded. His car would crank, but needed a hot shot to start it. His car never died while in motion though.

[RichardP]

Try looking at the pcm diode in the fuse box under the hood. Remove it, and put it back in. Richardp had a similar problem and i think the contacts were dirty/ corroded. His car would crank, but needed a hot shot to start it. His car never died while in motion though.

My car used to shut off on me mid flight, but that was due to a bad CoilOnPlug.

[vegasmarauder]

The PATS keys don't shut off due to excessive cranking. If it stops cranking, then there is a power issue in the starting circuit. But with the other power issues, either the battery is not holding enough voltage or something is impeding the power flow (dirty battery connections, corroded contacts in power junction box, etc). Have to start at the begining and make sure battery is good and connections clean and tight and then go on from there.

[FX1]

I thought it was my key. One key stopped working. Then the other key worked. Now it's not cranking. Something's going on. Won't be able to mess with it agsin till this afternoon. Ahhhh. I know it's going to be something stupid. I hope. Thanks for the help.

[Comin' in Hot]

The whole wiring harness runs around the front of your car behind the bumper, they are known to chaff on the fender braces that go from the core support down to the lower front fenders. Put your car up on jack stands or ramps in the front, and look through the access flaps for the fog lights.You'll see what I'm talking about, the harness rubs up against the steel rod and causes all sorts of problems.

I had this harness take out my fuel pump wire.

[fastblackmerc]

How old is the battery? Make sure all positive & negative connections are clean and tight.

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Battery is 3-4 years old. Tow truck guy said it was good. That's when I tried another key and it cranked. Battery's prob dead now. Won't crank. Cars at a friends garage. He's been working on Cadillacs at a stealer ship for 10 years. Has tons of experience with electrical problems I'm sure. He says he's Gonna check the schematics at work for where some fuses get their power and still need to see where the aldl or dlc get its power from. That should have power to it no matter what position the key is in.

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My mechanics thinking it might be my ignition switch. Was able to get it cranking again messing with it. Any thoughts?

[RF Overlord]

The AL DL doesn't work

And where dose the Aldl get it's power from?

You don't have an ALDL...those were a proprietary General Motors diagnostic connector prior to OBD-II. The Marauder has a DLC - Data Link Connector and it gets power from the PCM on pin 16