Hi all and thanks in advance for any assistance you can provide !

The question is in regard to my 1984 GSL-SE. The car is accelerating on its own! If I place it in neutral, it revs up through redline unless I turn it the car off. The only thing that corrects it while driving is if I turn the cruise off. If the cruise is on, the problems persist. Is it possible my cruise control switch is faulty and the switch is stuck? Is it as easy as just replacing that arm? If so, where is the best place to source it out?

AGAIN THANK YOU !

 

Either: (1) your CC cable is frayed or (2) the CC unit (right side firewall) is not releasing.

Mike

 

also.. did you check the cc computer?

 

Been a month, I guess this is why I am in the "slow lane". I hope this is not too long...just want to explain the best I can here.

I assume the cruise control computer is fwd of the driver's side rear tire - possibly behind the storage bin on the same side inside the cabin? I was going to check that, but I don't have an ACC Checker (49 9200 010 ) Is that something I buy or is it already in the vehicle? (dumb ?)

I DID check the actuator inner cable for play and to see if it is frayed. It does NOT appear frayed, and the play appears to be within tolerance, however I did not actually measure it.

I also checked the resistance at the plug coming off the actuator solenoid, located on the firewall at the right fender. I don't know how everyone gets pics on here. Even at 1.2 MP, my pics are STILL too big for here - (SECRETS?) - Anyway I will describe the best I can. With the lead to the actuator unplugged, and looking at it with the flat side down, the pins are :

A C
B D

With a lead remaining constant on A, I checked resistance between the other terminals:

A - B = 35.2 OHMS
A - C = 52.5 OHMS
A - D = 25.5 OHMS

I understand the resistance is suppose to be between 25 - 35 OHMS. Does this tell me my actuator solenoid is bad, or am I jumping the gun? If I understand the schematics right, Does pin A go to the Main Switch and the others to the CC unit?

I don't want to waste $$ on the actuator if I don't need one, and I have only been able to find ONE (1) at a far away dealership. How can I test the cc unit w/out the ACC Checker?

Thanks in advance all. At least I am trying to learn right?

 

CC computer is under the driver's storage bin. Open the bin lid and remove the screws around the rim. Remove the storage bin and you will see a silver box fastened to the front wall of the bin frame. It is not the box flat on the bottom, that is an amplifier for the stereo. Tha cc computer often gets wet and corrosion shorts the traces on the circuit board . I've fixed several by removing the cover and cleaning off the corrosion.

I'm in Naples also. PM if you need more help or parts.

Ron

 

Thanks Ron
Looks like I may be taking you up on the offer soon !

 

The issue was the combination switch. I swapped it out and all works normally now. Thanks to all who helped me out....ESPECIALLY 74rx4 who is ALwAYS there for me when I have an issue....YOU ARE THE MAN !