Problem with my GMC SUBURBAN
tech = SF
question = THE PROBLEM I HAVE THE VEHICLE IS IN TWO WHEEL DRIVE ABS
THE LIGHT INDICATES BUT ALSO THE AUTO LIGHT IS ON SIMULTANEOUSLY.
AND THE VEHICLE FEELS LIKE ITS IN FOUR WHEEL DRIVE. JUST STARTED WHAT
COULD THE PROBLEM BE. THANK YOU MIKE. I WILL MAKE A DONATION IF YOU
DO RESPOND,
GIVE MY WORD
SF:
There are a few things that can cause this condition.
Most common is the actual switch. The switch works off resistance and sends a signal
to the transfer case control module (TCCM). The module sends a signal to the 4
wheel drive motor.
If the resistance in the switch is not correct, it sends 2 different signals to the module,
which confuses it. You could try to unplug the switch with the key on, re-connect, turn
key off, then start truck and see if conditions are corrected. This is a sign of a bad
switch. Without looking at scanner data, checking codes, and doing some voltage /
resistance checks, it would be hard to determine if the switch or the module. A new
module would have to be programmed to function.
4 wd. motors have also gone bad, but nearly as common as above.
tech = SF
question = THE PROBLEM I HAVE THE VEHICLE IS IN TWO WHEEL DRIVE ABS
THE LIGHT INDICATES BUT ALSO THE AUTO LIGHT IS ON SIMULTANEOUSLY.
AND THE VEHICLE FEELS LIKE ITS IN FOUR WHEEL DRIVE. JUST STARTED WHAT
COULD THE PROBLEM BE. THANK YOU MIKE. I WILL MAKE A DONATION IF YOU
DO RESPOND,
GIVE MY WORD
SF:
There are a few things that can cause this condition.
Most common is the actual switch. The switch works off resistance and sends a signal
to the transfer case control module (TCCM). The module sends a signal to the 4
wheel drive motor.
If the resistance in the switch is not correct, it sends 2 different signals to the module,
which confuses it. You could try to unplug the switch with the key on, re-connect, turn
key off, then start truck and see if conditions are corrected. This is a sign of a bad
switch. Without looking at scanner data, checking codes, and doing some voltage /
resistance checks, it would be hard to determine if the switch or the module. A new
module would have to be programmed to function.
4 wd. motors have also gone bad, but nearly as common as above.
Answer: If you're sure the brakes are ok and not
grinding or worn, then you probably bent
something when you took it off road to avoid the
other car. There are backing plates on both the
front and rear brakes that could have bent inward
and be rubbing against the front brake rotors or
rear drums. You would have to get under the truck
or take the wheels off to see if that is what is
making the grinding noise. You should probably
also check for any other damage to the suspension
and drive train that might be making noise too.
grinding or worn, then you probably bent
something when you took it off road to avoid the
other car. There are backing plates on both the
front and rear brakes that could have bent inward
and be rubbing against the front brake rotors or
rear drums. You would have to get under the truck
or take the wheels off to see if that is what is
making the grinding noise. You should probably
also check for any other damage to the suspension
and drive train that might be making noise too.
1992 Chevy C1500
Engine size :V6 4.3L 2WD
Question = My truck is wanting to lock up, more like its catching when I go to stop. But its not the brake
pads or shoes, they are still in pretty good condition. But I still hear a metal on metal grinding sound
while driving around but its even worse when I go to stop. It all started when I was driving down a dirt
road and a car came barreling towards me, so I had to run the truck off the road into a field and I had
to slam on the brakes to keep from entering the woods at 40 mph
Engine size :V6 4.3L 2WD
Question = My truck is wanting to lock up, more like its catching when I go to stop. But its not the brake
pads or shoes, they are still in pretty good condition. But I still hear a metal on metal grinding sound
while driving around but its even worse when I go to stop. It all started when I was driving down a dirt
road and a car came barreling towards me, so I had to run the truck off the road into a field and I had
to slam on the brakes to keep from entering the woods at 40 mph
1978 Chevy Truck Engine size = 305
cut new threads on stud. Question = need to change stud,what tool and how.
cut new threads on stud. Question = need to change stud,what tool and how.
Answer: Seeing as how you didn't describe what
stud you need to change, I'll assume you
probably mean a lug stud. If it's a front stud, you
can remove the brake rotor and pound the stud
out the backside of it with a hammer. Same goes
for the rear, but the stud is pressed into the axle
so you'd have to leave that in, but can hammer it
out as well. To install a new one, just feed it
through the hole and put some pressure against
the back of it while you tighten a lug nut, this will
draw the stud into position and you'll be done.
stud you need to change, I'll assume you
probably mean a lug stud. If it's a front stud, you
can remove the brake rotor and pound the stud
out the backside of it with a hammer. Same goes
for the rear, but the stud is pressed into the axle
so you'd have to leave that in, but can hammer it
out as well. To install a new one, just feed it
through the hole and put some pressure against
the back of it while you tighten a lug nut, this will
draw the stud into position and you'll be done.
