700R4 question
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Race Director
Joined: Jul 2018
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From: San Antonio, TX/Mahopac, NY
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700R4 question
I have a C1, but it has a 700R4 behind a 370HP 350 crate engine.
This will sound like a weird question, but should I be able to roll the car around when the engine is off and the tranny is in Drive or Reverse? It rolls just like it is in neutral. In Park the pall engages and it doesn’t move. I’m having a very strange starting problem and I had to push the car back into the garage which is how I discovered it.
This will sound like a weird question, but should I be able to roll the car around when the engine is off and the tranny is in Drive or Reverse? It rolls just like it is in neutral. In Park the pall engages and it doesn’t move. I’m having a very strange starting problem and I had to push the car back into the garage which is how I discovered it.
Advanced
Joined: Feb 2018
Posts: 86
Likes: 11
That sounds normal to me. If the car stalls will driving, it will coast untill it runs out of momentum. It's not like a manual transmission where it's in gear and turns the engine with the wheels. You theoretically should be able to push it around while it's in drive but I have never tried.
I could be wrong so someone please correct me if I am.
I could be wrong so someone please correct me if I am.
Thread Starter
Race Director
Joined: Jul 2018
Posts: 10,592
Likes: 8,416
From: San Antonio, TX/Mahopac, NY
2026 Restomod of the Year Winner
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
But if you are right, it will be a huge relief!
Thread Starter
Race Director
Joined: Jul 2018
Posts: 10,592
Likes: 8,416
From: San Antonio, TX/Mahopac, NY
2026 Restomod of the Year Winner
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
Thank you! I was starting to convince myself that the PO had the TV cable screwed up and trashed the tranny.
Safety Car
Joined: May 2001
Posts: 4,759
Likes: 1,647
From: Fairfax Virginia
I push mine around frequently when working on it. All I hear on my 1988 C4 is the brakes dragging a bit while pushing it. The only squeaks I get are from the suspension when pushing or releasing pressure on the body.
That is a Beautiful Corvette you have there, with the additional horsepower it must be even more fun!
Best regards,
Chris
That is a Beautiful Corvette you have there, with the additional horsepower it must be even more fun!
Best regards,
Chris
Melting Slicks
Joined: Feb 2003
Posts: 2,677
Likes: 812
From: Saskatoon Sask.
Normal. Pushing the car backwards, you may hear a "screech" or constant "squeak". This too is normal, in that rolling car backwards causes the lo-roller clutch to slip, and its elements make noise as they slip. There is also more resistance pushing it backwards. Also normal.
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Melting Slicks
Joined: Feb 2003
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From: Saskatoon Sask.