Chevrolet Colorado & GMC Canyon Forum banner

1 - 18 of 18 Posts

·
Registered
Joined
·
2,260 Posts
Discussion Starter #1
I have checked all the connectors when I had this problem a while back brought the truck into the shop had half the dash out no burnt connectors anywhere....

now I have searched throughout all the pages haven't found the same issue that im having
my issue Is an on and off thing....one minute my heat works then I head home no heat happened this afternoon on my way home from work and then I hit a fairly large bump and wham she came back on


then later this evening I was in the truck and heading to sell some tires I had heat the whole way but the hvac vent direction lights were all out.. there is bout a 20 min drive then when I shut the truck off sold the tires and headed home had no heat once again...and I tried hitting every bump on the way home

is this the blower motor saying ive had enough and slowly dying or am I having more electrical problems....
 

·
Registered
Joined
·
137 Posts
Wow... Lots of things there. When you mentioned hitting a bump the first thing I thought of was the thermostat. Then you said the lights were off on the dash, so that's not a thermostat. Is the blower running during the time you don't have heat, or is that what is shutting down randomly?
 

·
Registered
Joined
·
2,260 Posts
Discussion Starter #3
yeah its deff not from the tstat.......nope the blower motor doesn't work at all then works on all settings no problem its so hoaky
 

·
Registered
Joined
·
137 Posts
Sounds to me like the blower is going out, or the blower speed switch (rheostat). Have you turned the rheostat from off through 1-4 when it's acting up?
 

·
Premium Member
Joined
·
2,761 Posts
yeah its deff not from the tstat.......nope the blower motor doesn't work at all then works on all settings no problem its so hoaky
Have you checked the connector behind the right kick panel? It's a long, 22 pin, inline connector, located down low in the opening. Both sides of the blower circuit (power & ground) go through that connector. There have been reports of problems with burned pins in that connector.
 

·
Premium Member
Joined
·
5,710 Posts
Sounds like these guys can help you troubleshoot an electrical problem, not a heat problem (thermostat, coolant, heater core, radiator).
 

·
Registered
Joined
·
2,260 Posts
Discussion Starter #9
Sounds like these guys can help you troubleshoot an electrical problem, not a heat problem (thermostat, coolant, heater core, radiator).

The truck has no heat you asshat same shit you have nothin helpful to say gtfo plain and simple
 

·
Registered
Joined
·
2,260 Posts
Discussion Starter #10
Have you checked the connector behind the right kick panel? It's a long, 22 pin, inline connector, located down low in the opening. Both sides of the blower circuit (power & ground) go through that connector. There have been reports of problems with burned pins in that connector.

Connector is good to go thanks tho
 

·
Registered
Joined
·
2,260 Posts
Discussion Starter #11
Sounds to me like the blower is going out, or the blower speed switch (rheostat). Have you turned the rheostat from off through 1-4 when it's acting up?

Yeah I'm gunna pull that portion of the dash apart tomorrow...I have turned every nob pulled on all connectors while it's not working first time I reached behind the dash and pulled on the wire that moves when the speed is selected and that work. But not this time
 

·
Registered
Joined
·
137 Posts
Yeah I'm gunna pull that portion of the dash apart tomorrow...I have turned every nob pulled on all connectors while it's not working first time I reached behind the dash and pulled on the wire that moves when the speed is selected and that work. But not this time
If it worked before, then that's probably where the issue is. Normally if a switch is going bad you can get it to work by thumping it, or wiggling wires connected to it, but that's only temporary because it eventually will fail. I'd start right there.
 

·
Registered
Joined
·
4,917 Posts
Also check the ground block by the intake box. I haven't had time to pull mine off and check it. Mines doing the same. Works fine on all settings. Then nothing. Has only done it twice. But that's too many cause it's cold.
 

·
Registered
Joined
·
2,260 Posts
Discussion Starter #16
Well I wiggled the ground under the hood heat came on....but now my 4x4 dash buttons don't work and the lights on my direction switch don't work
 

·
Registered
Joined
·
127 Posts
Have you checked inside the ground splice pack?



This is most likely the problem. Unbolt it, get the bolt out of the tab, and pop the case open, like shown in the pictures. I disconnected all the wires from the box, cut off the connectors, and crimped all the wires there into a ring terminal. Solved all my problems with it.

I think everyone is still having a hard time understanding OP's problem. Is there no air coming out of the vents, or is there air coming out, but not warm air?
 
1 - 18 of 18 Posts
Top