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Shifter Not Locking

Auzzie88

Member
Joined
Jun 30, 2006
Messages
24
Location
Colorado
Corvette
1988 blue coupe
Whenever I drop the car down into 1,2,or D the shifter does not lock. I can put it in 1 and slide it up into overdrive with one push. Is the cable just loose?Also, what temp a good running condition? She is running at about 225-235(max)?
 

Jeb

Well-known member
Joined
Jan 20, 2005
Messages
456
Location
Covington, Louisiana
Corvette
1987 Convertable
The shifter only locks in Drive(O). It's not supposed to lock in D, 1, or 2. I believe it's designed to lock there only because that keeps you from shifting into reverse from a forward gear by accident.

Your temp seems a tad high but not so high that you need worry too much. Is the area between the radiator and condenser clean? For some reason that area attracts garbage and that will cause the temps to rise somewhat.
 

racsluos

Well-known member
Joined
May 29, 2006
Messages
82
Location
North Vancouver, BC
Corvette
1987 Gold Coupe
Jeb said:
The shifter only locks in Drive(O). It's not supposed to lock in D, 1, or 2. I believe it's designed to lock there only because that keeps you from shifting into reverse from a forward gear by accident.

That's what I had hoped, just a little weird how easily it floats from D to OD...thanks for the reply Jeb.
 

c4cruiser

Well-known member
Joined
Feb 22, 2002
Messages
971
Location
Lacey, WA USA
Corvette
87 Gold Z52 Coupe 02 EB Z51 Supercharged Coupe
The shifter locks only in "P" or "D".

As far as temps, those are high but what is the air temp?? City traffic or out on the open roads?

As mentioned, it's common for dirt and debris to clog the front of the A/C condensor and radiator, resulting in a loss of air flow over the coils. You can direct a stream of water from the back (fan side) to flush out dirt, paper, leaves, small animals, Honda's or whatever gets sucked up from under the car.

Corvettes are called "bottom breathers" in that cooling air (and intake air) flows under the license plate and enters the radiator. Make sure the air dam under the car is in good shape as that is needed to direct the airflow upwards.

Old radiators eventually lose some of the thickness in the metal tubes where the coolant flows simply because of the friction of the coolant flowing through them. This results in a loss of the ability to transfer heat from the coolant. Other problems can be a breakdown of the radiator hoses causing them to collapse and reduce the amount of flow. The fins in the water pump can be eaten away from corrosion and that reduces the amount of coolant passing thru the system. A sticky thermostat can cause a reduction of coolant flow too.

I would do a complete flush of the system, replace the upper and lower radiator hoses, thermostat, radiator cap, and clean the radiator core. Use a 50-50 mix of the correct coolant and distilled water.

A properly functioning cooling system should not need a lower temp thermostat but you could use a 180 degree 'stat if you stil see high temps after the above maintenance.
 

Auzzie88

Member
Joined
Jun 30, 2006
Messages
24
Location
Colorado
Corvette
1988 blue coupe
Can I install a new shifter to make it lock, or is it the tranny itself? Don't really like the non-locking. It just seems a bit odd, first time vette owner, not to lock. It is a little dirty, but I will clean it out and maybe run so new hoses. I was thinking about putting in a 160 degree thermostat and cold air induction.
 

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