Question about 1991 GMC Safari

Open Question

My air conditioner cruise control and speedo all

My air conditioner, cruise control and speedo all quit working at same time is this a common problem.the air was working fine now the clutch wont engage. i've been told the speedo is electronic and is some how connected to the air by a relay or sensor

Posted by on

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

How to repair cruise control?


Try from Servo control follow connection To I beleive Transmission casing . Look for Burnt wiring / frayed / damaged ...Cruise should maintain speed signal Like speedo cable . Computor management black box / ECM may have direct control so Look for engine bay fuse boxes = 2 under hood . More fuses ++ relays 2 check inside cover is diagram of size + what it controls . A Reset 2 ecm may help by disconnecting Battery - Let sit 30 mins.. Older models + 4 wheel drive Trans has Gear wheel of plastic 2 count revolutions as speedo cable does . If said wheel teeth have worn out then Cruise counts incorrect or fails 2 activate . If you replaced brake pedal Light activation switch then be sure brake Tail lights DO work if not the cruise will fail as brake pedal is part of safety feature to turn it off in emergency disconnect . The signal light Stalk that Turns off L / R signals is Common Item 2 wear out BUT it also controls Turning on cruise or setting ...IF you have Steering wheel on / off / setting control - then issue can be frayed / cut wires due 2 steering wheel movement ....solutions remove wheel BUT 1 st disconnect Air Bag Fuse then wheel and search connections .....Good Luck ...

Apr 16, 2015 | 2002 Chevrolet Tahoe

2 Answers

Does my 1996 honda accord have a vehicle speed sensor


most old cars have a speedo cable.
is the odometer dead too. (we need that answer now)

there are 3 class evolutionary systems.
cable
electric sender to cluster
and sender to PCM and PCM drives cluster.
but honda does this on diffr, dates than most cars. (i learned)

so lets do that. we login to alldata.com and look , so can you at any time,
once a month i do random cars.
what engine, sometimes this varies by engine, and trans.
neither stated so Ill toss coin each time.
a/t trans.
1996
has electronic (hall) speed sensor VSS and runs
engine, cruise. odometer and cluster.

the 96 has no speedo cable, and works in modern mode, very advance for this time
also any scan tool on earth fits the PCM scan port
and if VSS is dead, it tells you that with a DTC , vss dead.
saving all that work wondering why it dont work.
see/?
PCM must see it work
and cluster
and cruise
if only cluster fails, and both speedo and odometer then its bad.
if only speedo fails but not odometer , then speedo meter is bad.
its that easy.

Mar 25, 2015 | Honda Cars & Trucks

2 Answers

My cruise control stoped working, my speedometer still works


cruise control have there own fuse check that ,make sure it is still hooked up to throttle ,check vacuum lines and power plugs , your speedo has nothing to do with cruise,also check that it is activated,test horn ,YES horn and cruise use same relay ,make sure your brake pedal is retracted ,and that brake lights work as well, good luck with it if I can be of further help get back to me ,hope I helped you.
Woody

Aug 27, 2014 | Cars & Trucks

1 Answer

What would cause it to work one day and not the next(cruise control) and where is the speed sensor located


I don't have any advice on the cruise control, it would have to be checked out.
The same speed sensor on the transmission handles the cruise control and the speedometer. If it fails, the speedo would quit working and the check engine light would come on.

Dec 16, 2012 | 2000 Mitsubishi Montero Sport

2 Answers

1998 v70 volvo speedometer does not work all the time


i also have a 99v70.
As i was driving the car home 2 days ago in cruise control. Suddenly the speedo dropped to '0'. The cruise control quit and the abs, upshift arrow, and check engine light came on. The solutions is the 'abs control unit' From Volvo; 870.00
from Advance; 256.00 w/ core exchange. Its fixed all those dash issues.good luck

Sep 23, 2012 | 2001 Volvo V70

1 Answer

Vacuum leak on 95 buick riviera, I have several problems related to vacuum leaks. First is cruise control quit working recently, second windshield washers not working and third air conditioner seems to...


May have to check out if the vacuum motors have the vacuum tubes attached but this may take a lot of work to disassemble the heating ventilation air conditioning out of the dash and underneath the dashboard. If rain enters the compartment under the dashboard, the pan that is designed to catch water may be disturbed or cracked somehow. Try to check fuses for a/c and the heating, the cruise control, and windshield wipers to see if there is an obvious electrical issue there. The vacuum leak is not related to the windshield wiper motor not working.

Good luck on this repair.

Nov 05, 2011 | 1995 Buick Riviera

1 Answer

Got a 1993 4.0 xj40 sovereign (xj6) with an intermittent Cruise control. Works perfectly till engine temp reaches normal then ceases to operate. Have replaced Speed control module and vacuum pump unit...


check if your car has a speed sensor located in the diff rear cover if so from memory early face lift xj40 models used that sensor for the cruise only signal . the speedo signal came from the abs circuit. does the speedo fail at the same time? the sensor in the diff used to change spec when the oil increased in temp whatever sounds like the speed signal is at fault, blue wire i think at the seed control module good luck

Jul 23, 2017 | 1990 Jaguar XJ6

1 Answer

Windows, a/c, cruise, locks, all suddenly quit -- fuses all good


SOUND LIKE WEAK DEAD BATTERY.CHECK BATTERY CABLES.MAKE SURE THEY ARE CLEAN FREE FROM CORROSION AND CONNECTION TO BATTERY CABLES TO BATTERY POST TIGHT.

Jun 18, 2010 | 1999 Oldsmobile Alero

1 Answer

My 2001 Buick Regal LS air and cruise stoped working


You have two on related problems , just a coincidence they stoped at the same time . The cable inside the cruise control module is probably broken , this cable is connected to the cable that opens the throttle . I'll post a video to show you what i'm talking about !
No Cruise Control Buick LeSabre You can buy this part for $10 to $20 buck ! Change it out in 10 min.
Now your other problem is the Blower motor isn't blowing air out of the vents ? The way you describe it working then on high only an now not at all this could be the motor . Unless the motor was bad enough to take out the blower motor resistor an the high speed relay as well.
Testing would need to be done to find the problem !
Blower Motor Problems Auto Repair Help
If you are willing to test the blower motor and electrical circuit you can find free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on HVAC , then under subsystem HVAC controls will pop up . Click the search button ,then the second blue link . Unless your's has automatic ,then it will have blower motor control processor .

Jun 07, 2017 | 2001 Buick Regal

1 Answer

CRUISE CONTROL QUIT WORKING ON 94 RANGER 4.0L 4X4


there is a control box for the cruise control behind the glove box . You can remove the cover by pushing in from both sides of the glove box door . the control box will be just inside the glove box to the top. it simply unplugs. any junk yard with an aerostar or ranger or explorer will have one of these control boxes fairly cheap. these control boxes are commonly known to just quit workingand are a very easy fix.

Feb 09, 2009 | 1994 Ford Ranger Supercab

Not finding what you are looking for?
1991 GMC Safari Logo

Related Topics:

70 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

74896 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...