C5 quits while driving

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Jun 29, 2020 | 06:16 AM

cageman2001

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4th Gear

Joined: Jun 2020

Posts: 4

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C5 quits while driving

2001 quits while driving starts right back up with key gouges go dead but come right back . Been noticing gauge sweep if erratic on key cycle sometimes.

Jun 29, 2020 | 06:18 AM

wydopnthrtl

Drifting

Joined: May 2007

Posts: 1,550

Likes: 325

From: Mid Ohio

Loose or broken wires or loose / dirty ground would be my guess

Jun 29, 2020 | 06:21 AM

cageman2001

Thread Starter

4th Gear

Joined: Jun 2020

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C5 quits while driving

checked all grounds and powers all good ..

Jun 29, 2020 | 06:59 AM

C5 Diag

Moderator, Tech Contributor

Joined: Sep 2013

Posts: 15,313

Likes: 3,925

From: Cape Coral, Florida

Sounds like a possible bad ignition switch if it just cuts out completely while driving like that...bad crankshaft sensor would also cause the car to quit !!

Jun 29, 2020 | 08:42 AM

rrwirsi

Melting Slicks

Joined: Nov 2014

Posts: 3,399

Likes: 1,338

From: Havre de Grace Maryland

Quote:

Originally Posted by C5 Diag

Sounds like a possible bad ignition switch if it just cuts out completely while driving like that...bad crankshaft sensor would also cause the car to quit !!

Has not happened to my C5 but the same problem occurred in my Murano. The Dealership said it was the fuel pump in the tank that needed changing. $1500. Went on line and found a possible cure was listed as a crankshaft sensor. Took a chance and had my mechanic replaced only the sensor. Three years later, no problems.

Jun 29, 2020 | 09:04 PM

pcfred

Safety Car

Joined: Jan 2004

Posts: 4,776

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From: North of Atlanta GA

St. Jude Donor '05

Quote:

Originally Posted by C5 Diag

Sounds like a possible bad ignition switch if it just cuts out completely while driving like that...bad crankshaft sensor would also cause the car to quit !!

bad ignition switch! Been there done that. Pull and replace or clean.

Jun 29, 2020 | 09:21 PM

cageman2001

Thread Starter

4th Gear

Joined: Jun 2020

Posts: 4

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C5 quits while driving

been doing some checks ,car will duplicate problem periodically by just cycling key..acts like low voltage or bad grounds went all through that all seems OK. When it happens fuse panel under hood clicks profusely. I've noticed something tonight and its seems like the fuel pump sounds funny,pulled fuse for fuel pump and have cycled key numerous times everything seems OK.put fuse back in and problem seems to come back.Csr has 188000km on it i might replace the fuel pump and try.

Jun 29, 2020 | 11:02 PM

pcfred

Safety Car

Joined: Jan 2004

Posts: 4,776

Likes: 142

From: North of Atlanta GA

St. Jude Donor '05

Quote:

Originally Posted by cageman2001

Have you experienced hesitation at higher speeds?

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Jun 30, 2020 | 05:30 AM

cageman2001

Thread Starter

4th Gear

Joined: Jun 2020

Posts: 4

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C5 quits while driving

I've noticed it hitches a little.

Jun 30, 2020 | 09:00 AM

#10

bjones7131

Safety Car

Joined: Jan 2014

Posts: 4,496

Likes: 856

From: Walhalla South Carolina

Run the codes and see what you have if you haven't already. Good luck with it.

Jul 5, 2020 | 09:34 PM

#11

Daveinnola

Racer

Joined: Apr 2019

Posts: 359

Likes: 124

From: South Louisiana

Mine did same thing. While driving just shut off. Restart no problem. Did this a couple times. Replaced ignition switch No problem since.

Jul 5, 2020 | 11:50 PM

#12

jim993

Drifting

Joined: Sep 2009

Posts: 1,862

Likes: 594

From: Prescott, Arizona

Bad ignition switch. The clue is a change of symptoms on re start. Symptoms vary considerably depending on which contacts in the switch are in the worst condition, but die during driving is one, gauges going wild or off another, reduced power, service active handling, low voltage and on-

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