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Intermediate
Joined: Apr 2021
Posts: 40
Likes: 19
From: Northern Nevada
Have you checked for trouble codes? Any recent work done to it? Has it been sitting a while and just recently started doing this? Rodents? water intrusion? A little more history may help us? My first thought would be a dead cell in a battery also. A load test will show this, a volt meter( unless you know what you're looking for) will not.
Thread Starter
Cruising
Joined: Jun 2022
Posts: 14
Likes: 0
From: Va
Top leaks a little but there wasnt any water around the fuse box or ECM. It ran fine last Friday we got back from a trip and this morning nothing
It started fine once today. Then it was back to not starting. Nothing done to it other than repalce some burnt out bulbs with LEDS.
It started fine once today. Then it was back to not starting. Nothing done to it other than repalce some burnt out bulbs with LEDS.
Melting Slicks
Joined: Sep 2008
Posts: 3,138
Likes: 802
From: Espanola New Mexico
I belive you have a problem with the Ignition switch contacts or a bad electrical connection. The Ignition switch has contacts that power relays that provide power to the cars different systems, hence you have some power, but not to the part of the car that performs the gauge sweep and such. I am betting the one time it started it did do the normal gauge sweep and indicators turning on and then turning off before starting?
Thread Starter
Cruising
Joined: Jun 2022
Posts: 14
Likes: 0
From: Va
I belive you have a problem with the Ignition switch contacts or a bad electrical connection. The Ignition switch has contacts that power relays that provide power to the cars different systems, hence you have some power, but not to the part of the car that performs the gauge sweep and such. I am betting the one time it started it did do the normal gauge sweep and indicators turning on and then turning off before starting?
Thread Starter
Cruising
Joined: Jun 2022
Posts: 14
Likes: 0
From: Va
I belive you have a problem with the Ignition switch contacts or a bad electrical connection. The Ignition switch has contacts that power relays that provide power to the cars different systems, hence you have some power, but not to the part of the car that performs the gauge sweep and such. I am betting the one time it started it did do the normal gauge sweep and indicators turning on and then turning off before starting?
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Thread Starter
Cruising
Joined: Jun 2022
Posts: 14
Likes: 0
From: Va
so the carpet under the seat is wet and the footwell is wet. Have the carpet pulled back to dry but will prob remove it and shampoo it. We had a major storm while we were out of town.
tue car started again and ran fine till I cut it off. Then it wouldn’t start again.
I have a new ignition switch coming to put in when I replace the radio so I don’t have to pull the dash apart twice.
just the new developments. Hope I can get it going again.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,595
Likes: 4,055
From: Cape Coral, Florida
When you open the driver's door you will see a rubber boot between the door and pillar...pull back the boot and inspect for loose connections at the connector there...it sometimes gives go no start conditions !!...you said when you shut the door it cut off.
Melting Slicks
Joined: Sep 2008
Posts: 3,138
Likes: 802
From: Espanola New Mexico
Is there any visible corrosion on the board? There are several rebuilders of BCM's one them is G7 Computers heard very good things about them. If you buy another BCM you will have to do a relearn procedure, or maybe it will start working. Did you look at the connectors inside the rubber accordion they could be the cause of your cars no crank as well.
Thread Starter
Cruising
Joined: Jun 2022
Posts: 14
Likes: 0
From: Va
Is there any visible corrosion on the board? There are several rebuilders of BCM's one them is G7 Computers heard very good things about them. If you buy another BCM you will have to do a relearn procedure, or maybe it will start working. Did you look at the connectors inside the rubber accordion they could be the cause of your cars no crank as well.
where is the accordion you speak of?
sorry new to C5 Vettes Thanks for everyone’s advice
Melting Slicks
Joined: Sep 2008
Posts: 3,138
Likes: 802
From: Espanola New Mexico
The accordion boot is between the door and car, the driver side seems to have this problem because it gets opened and closed more then the passenger side. Loose electrical connections happen in the connectors that contain the female type contacts. This bad connections cause a loss of communication with all of the cars modules which can prevent the car from starting.
Thread Starter
Cruising
Joined: Jun 2022
Posts: 14
Likes: 0
From: Va
The accordion boot is between the door and car, the driver side seems to have this problem because it gets opened and closed more then the passenger side. Loose electrical connections happen in the connectors that contain the female type contacts. This bad connections cause a loss of communication with all of the cars modules which can prevent the car from starting.
Melting Slicks
Joined: Sep 2008
Posts: 3,138
Likes: 802
From: Espanola New Mexico
Seems like you have bad ignition switch contacts, there is a write up here on the forum that details how to clean the switch contacts, or simply buy a new ignition switch, be careful there are a lot of made in China switches.
