Question about 1980 Chevrolet Corvette

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1980 corvette with automatic transmission you dont have to push the button down to down shift from 3 to 2. How do you repair this

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  • Expert
  • 161 Answers

The return spring inside of the shifter might be weak or broken, or the tab in the shifter gate slot might have worn out or broken. Remove the shifter base and boot and inspect the slot and tab. (the tab rides inside of the slot). An excellent replacement spring can be found at:

Posted on Nov 30, 2014

Testimonial: "Thanks Dan very helpful."

  • Dan Karmengia Nov 30, 2014

    be found at docrebuild.com

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

emissionwiz
  • 75807 Answers

SOURCE: 1986 corvette 700R4 transmission will

Are you sure the TV ( trans shift cable at the throttle valve) cable is correctly adjusted?? Without line pressure readings, I can only guess that the D3/Part throttle check ball is missing, if it is a trans problem
If the TV is correct, I am assuming that the TV cable is pulled tight at WOT.
Did you check the throttle (ACCEL) cable to be sure that the carb goes wide open when your accel pedal is on the floor?? This must be done with someone in the car and a second person looking at the carb. Without doing this, you do not know if you have WOT. Without WOT, the trans will not de-tent and shift down.

Posted on Jul 29, 2008

c17hydro
  • 2984 Answers

SOURCE: location of fusebox on 1980 corvette

Fuses are located in the junction box below the instrument panel to the left of the steering column. The turn signal flasher and hazard warning flasher also plug into the fuse block. Each fuse receptacle is marked as to the circuit it protects and the correct amperage of the fuse. In line fuses are also used. Refer to the Fuse Chart at the end of the information for their location. The fuse block on some models is a swing-down unit located in the underside of the instrument panel adjacent to the steering column. Access to the fuse block on some models is gained through the glove box opening. The Convenience Center on some models is a swing-down unit located on the underside of the instrument panel. The swing-down feature provides central location and easy access to buzzers, relays and flasher units. All units are serviced by plug-in replacement. Location of Convenience Center on specific models may vary.

Posted on Oct 08, 2009

Testimonial: "thank you very much, i was pretty much tearing the car apart looking for kt."

dj_relly999
  • 4070 Answers

SOURCE: Just replace my wifes battery

Hi! Few things to look at... The neutral safety switch is surely faulty which needs replacement for it will not shift out of park. Regarding the steering wheel issue, please check the fluids if they are in the right level or look for leaks. If everything seems to be fine then the problem will be on the power steering pump, this will surely need replacement. Hope this helps and thank you for using FixYa!

Posted on Sep 05, 2010

  • 68 Answers

SOURCE: The automatic transmission shifts hard from 1st to

This is normal.

Posted on Mar 03, 2011

william_r_ri
  • 7 Answers

SOURCE: transmission won't work

there is a good chance that you burn the clutches in the transmission, you can try to use an additive, there is one by the name of LUCAS they are good but you may need a miracle unfortunate,

Posted on Feb 22, 2013

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My 2003 GMC ENVOY won't shift out of park


Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consists of the following components:
?€¢
The automatic transmission shift lock control solenoid


?€¢
The automatic transmission shift lock control switch

With the ignition in the ON position, voltage is supplied to automatic transmission shift lock control switch. Voltage flows through the normally closed contacts of the automatic transmission shift lock control switch to the automatic transmission shift lock control solenoid. The automatic transmission shift lock control solenoid is permanently grounded. This energizes the automatic transmission shift lock control solenoid causing the transmission shift lever to be physically locked in the PARK position. When the brake pedal is pressed the contacts in the automatic transmission shift lock control switch open, de-energizing the automatic transmission shift lock control solenoid. This allows the shift lever to be move out of the PARK position.
Shift Lever Does Not Move with Brake Pedal Depressed ?

2

  1. Turn ON the ignition.
  2. Press and hold the brake pedal.
  3. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Testing for Intermittent Conditions and Poor Connections
Go to Step 3

3

  1. Turn OFF the ignition.
  2. Disconnect the automatic transmission shift lock control switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Attempt to move the shift lever out of the PARK position.
Does the shift lever move out of the PARK position?
Go to Step 7
Go to Step 4

4

  1. Turn OFF the ignition.
  2. Leave the automatic transmission shift lock control switch disconnected.
  3. Connect a test lamp between the A/T shift lock control solenoid supply voltage circuit at the automatic transmission shift lock control solenoid and a good ground.
  4. Turn ON the ignition with the engine OFF.
Does the test lamp illuminate?

5

  1. Turn OFF the ignition.
  2. Connect a test lamp between the ignition 1 voltage circuit of the park lock solenoid and a good ground.
  3. Turn ON the ignition with the engine OFF.
Does the test lamp illuminate?
Go to Step 6
Go to Step 9

6

  1. Turn OFF the ignition.
  2. Connect a test lamp between the ignition 1 voltage circuit of the park lock solenoid and the park lock solenoid ground circuit.
  3. Turn ON the ignition with the engine OFF.
Does the test lamp illuminate?
Go to Step 8
Go to Step 11

7

Inspect for poor connections at the harness connector of the automatic transmission shift lock control switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14
Go to Step 13

8

Inspect for poor connections at the harness connector of the park lock/automatic transmission shift lock control solenoid assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 14
Go to Step 12

9

Repair the open or high resistance in the park lock solenoid ignition 1 voltage circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 14
--

10

Repair short to battery positive voltage in the A/T shift lock control solenoid supply voltage circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 14
--

11

Repair the open or high resistance in the park lock solenoid ground circuit. Refer to Circuit Testing or Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 14
--

12

Important: Depress the button on the side of the shift lock actuator. With the button is depressed, cycle the plastic straw within the shift lever 3 to 5 times. The straw should move smoothly and freely except near the top of the travel where additional force will be required to mechanically actuate the park lock mechanism inside of the shift lock actuator. If there is stick/slip or abnormal friction while cycling the plastic straw or if the straw is altogether stuck in the lever, the entire control assembly (shifter and shift lock actuator) needs to be replaced. Refer to Transmission Control Replacement . If there is no abnormal friction, replace the shift lock actuator. Refer to Automatic Transmission Shift Lock Control Actuator Replacement .
Did you complete the replacement?
Go to Step 14
--

13

Replace the automatic transmission shift lock control switch. Refer to Stop Lamp Switch Replacement in Lighting Systems.
Did you complete the replacement?
Go to Step 14
--

14

Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2

Jul 09, 2016 | GMC Cars & Trucks

1 Answer

My 2008 corvette is giving a harsh downshift as I am coming downhill and the manual shift is not in gear?


I am assuming you have an automatic transmission. If you put in neutral and you feel a down shift, then adjust the shift cable. Your probably going to have to do this at/under the console. If you have a manual transmission, then it is internal. Shift forks could be bent, plastic guides are worn out or gone.

Jan 29, 2015 | 2008 Chevrolet Corvette

2 Answers

How to unlock the shifter..... the car turn on, but i cant to move the shifter


Just turn the car on, but Dont start it and put it in nutruel then start it... This she work til you can afford to fix it...

Jan 20, 2015 | 2003 Cadillac CTS

1 Answer

04 corvette 4l60e swap into 98 corvette


most likely but I am not exactly sure what ones other than shift connections and speedometer sensor(etc)

Dec 23, 2013 | Cars & Trucks

1 Answer

How many qts of oil do i need


Depends on your engine.

1980 JEEP CJ-7 2.5L 4-cyl Engine Code [B]
CAPACITIES
Engine, GM without filter..........2.4 quarts[1]
Wix Filter ........ 51040
Cooling System, Initial Fill..........8.0 quarts
Automatic Transmission, A904, 30RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, A999, 32RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, Total Fill
3 speed A999, 32RH..........8.4 quarts
3 speed A904, 30RH..........7.0 quarts
Manual Transmission, 4-SPD, SR-4..........3.0 pints
Manual Transmission, 4-SPD, T176..........3.6 pints
Differential, Front..........2.5 pints[3]
Differential, Rear..........4.9 pints
Transfer Case,..........4.0 pints

1. Add extra oil when replacing filter. After refill check oil level.
2. With engine automatic transmission operating temperature, shift through all gears.
Check fluid level in NEUTRAL and add fluid as needed.
3. 1984-1992 Models with command-Track, add 5 oz of 75W-90 GL-5 to shift motor housing opening.

TORQUES
Oil Drain Plug.....25 ft-lbs
Manual Transmission T176
Fill Plug.....15 ft-lbs
Drain Plug.....15 ft-lbs
Manual Transmission SR4
Fill Plug.....20 ft-lbs

1980 JEEP CJ-7 4.2L 6-cyl Engine Code [C]
CAPACITIES
Engine, without filter..........5.0 quarts[1]
Wix Filter..... 51522
Cooling System, Initial Fill..........11.0 quarts
Automatic Transmission, A904, 30RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, A999, 32RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, Total Fill
3 speed A999, 32RH..........8.4 quarts
3 speed A904, 30RH..........7.0 quarts
Manual Transmission, 4-SPD, SR-4..........3.0 pints
Manual Transmission, 4-SPD, T176..........3.6 pints
Differential, Front..........2.5 pints[3]
Differential, Rear..........4.9 pints
Transfer Case,..........4.0 pints

1. Add extra oil when replacing filter. After refill check oil level.
2. With engine automatic transmission operating temperature, shift through all gears.
Check fluid level in NEUTRAL and add fluid as needed.
3. 1984-1992 Models with command-Track, add 5 oz of 75W-90 GL-5 to shift motor housing opening.

TORQUES
Oil Drain Plug.....30 ft-lbs
Manual Transmission T176
Fill Plug.....15 ft-lbs
Drain Plug.....15 ft-lbs
Manual Transmission SR4
Fill Plug.....20 ft-lbs

1980 JEEP CJ-7 5.0L 8-cyl Engine Code [H]
CAPACITIES

Engine, without filter..........4.0 quarts[1]
Wix Filter..... 51258
Cooling System, Initial Fill..........13.0 quarts
Automatic Transmission, A999, 32RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, A904, 30RH Initial Fill..........4.0 quarts[2]
Automatic Transmission, Total Fill
3 speed A904, 30RH..........7.0 quarts
3 speed A999, 32RH..........8.4 quarts
Manual Transmission, 4-SPD, SR-4..........3.0 pints
Manual Transmission, 4-SPD, T176..........3.6 pints
Differential, Front..........2.5 pints[3]
Differential, Rear..........4.9 pints
Transfer Case,..........4.0 pints

1. Add extra oil when replacing filter. After refill check oil level.
2. With engine automatic transmission operating temperature, shift through all gears.
Check fluid level in NEUTRAL and add fluid as needed.
3. 1984-1992 Models with command-Track, add 5 oz of 75W-90 GL-5 to shift motor housing opening.

TORQUES
Manual Transmission T176
Fill Plug.....15 ft-lbs
Drain Plug.....15 ft-lbs
Manual Transmission SR4
Fill Plug.....20 ft-lbs

Oilman

Feb 02, 2013 | 1984 Jeep CJ7

1 Answer

How to change settings


more shifters have two plates in it new to choice the trans you have a 3 speed or 3 speed and overdrive,being a 1980 vette,u have a350 or 400 turbo trans, e-mail the shifter manifactor to order a plate for the shifter, hope this helps

Apr 18, 2010 | 1980 Chevrolet Corvette

3 Answers

How to remove my old shifter knob on my 1979 corvette automatic???


either there is a small dowel pin that needs to be pushed through tap it out or it simply unscrews

Sep 15, 2009 | 1980 Chevrolet Corvette

2 Answers

How do you get the shift knob off a 1989 corvette automatic


pull plastic push button up to remove. there is a snap ring that holds shifter knob on. remove snap ring pull knob up.

Apr 15, 2009 | 1989 Chevrolet Corvette

1 Answer

Where do I add power stearing fluid


The power steering pump on a 1980 corvette is located directly under the alternator. I have found it easiest to reach between the alternator belt and unscrew the cap, then use a long stemmed funnel to fill it. If you shine a flashlight down into the spout, you'l avopid overfilling.

Feb 21, 2009 | 1980 Chevrolet Corvette

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