Has anybody had their rear hatch pop open while the car was parked?

I hadn't either, until yesterday. And then again today.

Yesterday, I came home from work and saw the hatch wide open. Rather unsettling, given that we'd had a thunderstorm roll through the area shortly before then. Thankfully, there was very little dampness inside of the car.

This afternoon, my neighbor called me and asked me if I was aware that the hatch on my Corvette was open.

Background info:

Yesterday morning, prior to the first occurrence of this anomaly, I drove the car home from my lady's house, around 25 miles, and the hatch stayed down during the entire trip. I didn't open it when I got home. It stayed closed when I closed the door, which as you know, always causes a surge in air pressure inside of the car. So it didn't pop open while the car was traveling 25 miles, and didn't pop open when I closed the doors after I parked the car. But it popped open later that day with nothing disturbing it, presumably.

I closed it yesterday, set the alarm, and closed the driver's door. Again, a surge in interior pressure and a jostle to the body, but the hatch stayed closed. Again today, presumably after nothing disturbed the car, the hatch popped open while I was away.

Anybody have a clue about what's going on here?

TIA for any advice. Heading out now to disassemble the trim and examine the latch mechanism, etc...

Live well,

SJW

 

Might try pulling the fuse to ensure the problem is not mechanical.

I had the hatch pop open when I hit a bump. Had to readjust and tighten the latch clamp.

 

I removed the entire latch mechanism, removed the solenoid from the latch, thoroughly inspected everything, and found not a clue as to why this is happening. As crazy as it sounds, I'm beginning to suspect a CCM fault. I don't like the taste of that. The assembly is now back in the car, with the solenoid disconnected. We'll see what happens when there's no electricity involved...

Live well,

SJW

 

Does the remote open your hatch? I messed with a friend for about a week when I found out my remote would lock and unlock his doors. Has this happened anywhere but your house? My quess is it will not open again untill you connect the seloniod. Can I ask what part of Maryland that is where sleep LOL

 

A VetteNet subscriber replied to a post I made there, suggesting that it might be a stray signal getting in via the PKE receiver.

Hmm... Hadn't even thought of that, as I tend to forget that these cars even have keyless entry, but it makes perfect sense.

I dislike the PKE system enough that the fobs for both of my C4s live in a desk drawer in the house. I just use the damned keys to open the car, like the old-school guy I am, so the PKE wasn't even on my radar screen as I pondered this odd behavior.

My recollection, which may or may not be accurate, is that it's possible to instruct the CCM to disable PKE activity completely. I'll pull out the owner's manual and FSM and research that. If it can be disabled, that'll be the next step I take.

For now, the latch assembly is back in the car, with the solenoid
disconnected. We'll see what happens over the next few days when there's no
electricity involved. I'll be quite surprised if it happens again with the
solenoid unplugged.

Thanks for the reply.

Live well,

SJW

 

Mine did the same only at 65 mph. Also the power locks would lock and unlock at that same speed. Got home and pulled the fuse for the remote.....that was three or four years ago. And I never had a remote and never had a problem again.

My 96' is a DD.

 

It might be from the relay at the shifter. The p/n start relay also controls the lid from not opening while the car is in drive.

 

Which fuse did you pull? The FSM seems to indicate that the fuse marked "PKE" only breaks the switched power feed from the ignition switch, and not the always-hot battery feed. I don't think that one's gonna shut down the PKE receiver completely when the car's parked. Is there a fuse that can be yanked that'll shut down the PKE receiver (and only the PKE receiver) completely at all times? Or do I need to disconnect the PKE receiver from the hatch release relay to prevent the receiver from triggering the hatch release?

Thanks for the reply.

Live well,

SJW