1980 Shuts off when put in gear
Thread Starter
Heel & Toe
Joined: Jul 2013
Posts: 24
Likes: 0
1980 Shuts off when put in gear
I need to ask for help with the brain trust of this forum. I have been a member for over a year and I have learned so much from other peoples posts, now I really need your help.....
I have a 1980 Vette, 350 with a turbo 350C transmission. I bought it a few years ago with hopes of driving it by now, but one problem has me stumped.
I start the car, runs great. Put it in reverse or drive and the engine stalls.
I double checked timing, good. Double and triple checked vacuum, good.
Checked for intake leaks, good.
I'm at wits end. A friend suggested it may be the trans, converter engaged killing the motor. How do I check this and how to repair?
Thanks in advance for any help.
Ray
I have a 1980 Vette, 350 with a turbo 350C transmission. I bought it a few years ago with hopes of driving it by now, but one problem has me stumped.
I start the car, runs great. Put it in reverse or drive and the engine stalls.
I double checked timing, good. Double and triple checked vacuum, good.
Checked for intake leaks, good.
I'm at wits end. A friend suggested it may be the trans, converter engaged killing the motor. How do I check this and how to repair?
Thanks in advance for any help.
Ray
Thread Starter
Heel & Toe
Joined: Jul 2013
Posts: 24
Likes: 0
Unpluged solenoid, no change.
Ordered a new solenoid today, hopefully that fixes it, if now, that would be a good excuse to put in a 700R4.
Burning Brakes
Joined: Apr 2009
Posts: 828
Likes: 2
I need to ask for help with the brain trust of this forum. I have been a member for over a year and I have learned so much from other peoples posts, now I really need your help.....
I have a 1980 Vette, 350 with a turbo 350C transmission. I bought it a few years ago with hopes of driving it by now, but one problem has me stumped.
I start the car, runs great. Put it in reverse or drive and the engine stalls.
I double checked timing, good. Double and triple checked vacuum, good.
Checked for intake leaks, good.
I'm at wits end. A friend suggested it may be the trans, converter engaged killing the motor. How do I check this and how to repair?
Thanks in advance for any help.
Ray
I have a 1980 Vette, 350 with a turbo 350C transmission. I bought it a few years ago with hopes of driving it by now, but one problem has me stumped.
I start the car, runs great. Put it in reverse or drive and the engine stalls.
I double checked timing, good. Double and triple checked vacuum, good.
Checked for intake leaks, good.
I'm at wits end. A friend suggested it may be the trans, converter engaged killing the motor. How do I check this and how to repair?
Thanks in advance for any help.
Ray
Thread Starter
Heel & Toe
Joined: Jul 2013
Posts: 24
Likes: 0
, it runs, until I back off the throttle then it shuts down.
Thread Starter
Heel & Toe
Joined: Jul 2013
Posts: 24
Likes: 0
Thread Starter
Heel & Toe
Joined: Jul 2013
Posts: 24
Likes: 0
Just thinking totally "out loud" here, have you checked your "neutral safety switch" under the console that would be connected to the shifter? Now again only thinking "out loud" to myself.....lol if there is a malfunction there, it may be a possibility of sending the wrong signal everytime you put the selector in gear....again just thinking.....
And in all due respect to the member who suggested of reving the engine to 1000-1200 rpms and dropping into gear, I would never do that with any automatic transmission, you are just asking for trouble......
And in all due respect to the member who suggested of reving the engine to 1000-1200 rpms and dropping into gear, I would never do that with any automatic transmission, you are just asking for trouble......
It' a 1980, no electronics, or am I missing something?
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Mar 2006
Posts: 2,248
Likes: 67
From: Warrington PA
Finalist 2020 C4 of the Year - Unmodified
No your not missing something, I am....lol
Disregard what I mentioned, most likely some other issue, solenoid or timing issue.....
Disregard what I mentioned, most likely some other issue, solenoid or timing issue.....
Last edited by 74 LS4-454; Jul 6, 2016 at 03:45 PM.
Melting Slicks
Joined: Mar 2006
Posts: 2,248
Likes: 67
From: Warrington PA
Finalist 2020 C4 of the Year - Unmodified
Since you have double checked everything, have you checked the carb?
Has it been rebuilt? Even if it hasn't there could be a possibility that the float is stuck, or that the screws going up though the carb from the bottom are loose?
Could also be timing issue, even though you checked it out. Is #1 piston @TDC with the rotor at #1 plug wire post on the dist cap?
Also check fuel pump, fuel pressure, fuel filter inside of carb...
Has it been rebuilt? Even if it hasn't there could be a possibility that the float is stuck, or that the screws going up though the carb from the bottom are loose?
Could also be timing issue, even though you checked it out. Is #1 piston @TDC with the rotor at #1 plug wire post on the dist cap?
Also check fuel pump, fuel pressure, fuel filter inside of carb...
Melting Slicks
Joined: Mar 2006
Posts: 2,248
Likes: 67
From: Warrington PA
Finalist 2020 C4 of the Year - Unmodified
Thread Starter
Heel & Toe
Joined: Jul 2013
Posts: 24
Likes: 0
Since you have double checked everything, have you checked the carb?
Has it been rebuilt? Even if it hasn't there could be a possibility that the float is stuck, or that the screws going up though the carb from the bottom are loose?
Could also be timing issue, even though you checked it out. Is #1 piston @TDC with the rotor at #1 plug wire post on the dist cap?
Also check fuel pump, fuel pressure, fuel filter inside of carb...
Has it been rebuilt? Even if it hasn't there could be a possibility that the float is stuck, or that the screws going up though the carb from the bottom are loose?
Could also be timing issue, even though you checked it out. Is #1 piston @TDC with the rotor at #1 plug wire post on the dist cap?
Also check fuel pump, fuel pressure, fuel filter inside of carb...
Hope it is the solenoid. The car runs great, has that low rumble that makes me glad I got the car, just dies when in gear.
As much checking, tuning, tweaking,cussing, throwing tools, kicking over beer cans and screaming, I know it has to be something simple.
Melting Slicks
Joined: Mar 2006
Posts: 2,248
Likes: 67
From: Warrington PA
Finalist 2020 C4 of the Year - Unmodified
Carb was where I went first, nothing out of the ordinary found, even changed to a known good carb, still the same. Timing is right on, fuel pump good, all filters new.
Hope it is the solenoid. The car runs great, has that low rumble that makes me glad I got the car, just dies when in gear.
As much checking, tuning, tweaking,cussing, throwing tools, kicking over beer cans and screaming, I know it has to be something simple.
Hope it is the solenoid. The car runs great, has that low rumble that makes me glad I got the car, just dies when in gear.
As much checking, tuning, tweaking,cussing, throwing tools, kicking over beer cans and screaming, I know it has to be something simple.
Don't give up, just kick somemore beer cans when you get a chance.
Burning Brakes
Joined: Apr 2009
Posts: 828
Likes: 2
Not neutral safety, that is for starting car in park or neutral only. If it runs when you power brake it's a vacuum issue. Sucking too much vacuum to keep motor running. Modulator will blowbtranny fluid through exhaust if bad and not gives smooth shift. If you make idle high with gas pedal and hold brake when putting into gear and it will go that is vacuum. Trace it. Something is cutting off the air or fuel to carb or sucking vacuum.
Burning Brakes
Joined: Jan 2012
Posts: 943
Likes: 73
I need to ask for help with the brain trust of this forum. I have been a member for over a year and I have learned so much from other peoples posts, now I really need your help.....
I have a 1980 Vette, 350 with a turbo 350C transmission. I bought it a few years ago with hopes of driving it by now, but one problem has me stumped.
I start the car, runs great. Put it in reverse or drive and the engine stalls.
I double checked timing, good. Double and triple checked vacuum, good.
Checked for intake leaks, good.
I'm at wits end. A friend suggested it may be the trans, converter engaged killing the motor. How do I check this and how to repair?
Thanks in advance for any help.
Ray
I have a 1980 Vette, 350 with a turbo 350C transmission. I bought it a few years ago with hopes of driving it by now, but one problem has me stumped.
I start the car, runs great. Put it in reverse or drive and the engine stalls.
I double checked timing, good. Double and triple checked vacuum, good.
Checked for intake leaks, good.
I'm at wits end. A friend suggested it may be the trans, converter engaged killing the motor. How do I check this and how to repair?
Thanks in advance for any help.
Ray
Did the problem always exist?