FLORIDA1
TYF Newbie
- Joined
- Oct 16, 2018
- Posts
- 12
- Reaction score
- 4
I have a 2005 2wd 4.8L Tahoe that is now just started giving me fits, always been a good ride.
This past weekend my son comes in & says, Dad your Tahoe is running, i'm thinking no way because i'm in the house with keys. So i go outside to learn both my fans are (RUNNING) all on there own, I'm really surprised by this.
So i unlock Tahoe & put key in ignition turn to on & fans stop running, so i start it & let it run awhile & shut it off, fans stay off. So i go back into house knowing something just isn't right. So i start to search online for the causes of this & Everything leads me to the (3) relays under hood & the coolant temp sensor in the driver side head.
Next morning i'm off to O'reilly's for the (3) Relays & the sensor. Change them out for nothing because now not only the same issues but now got another to go with it.
1, With my little hand held scanner it shows me my live operating Temp, truck up to 225 & no fan or fans kick on at all.
2, If i turn the A/C on with truck running, A/C Clutch will kick in & then the fans (Both) come on for a min until it all makes Tahoe run Rough & then die, turn it to heat same thing, runs rough then kill motor.
So, i've cleaned throttle body, installed new Temp sensor, 3 relays under hood, Switch in small A/C line.
Now i'm lost & need all the help i can get with this one.
This past weekend my son comes in & says, Dad your Tahoe is running, i'm thinking no way because i'm in the house with keys. So i go outside to learn both my fans are (RUNNING) all on there own, I'm really surprised by this.
So i unlock Tahoe & put key in ignition turn to on & fans stop running, so i start it & let it run awhile & shut it off, fans stay off. So i go back into house knowing something just isn't right. So i start to search online for the causes of this & Everything leads me to the (3) relays under hood & the coolant temp sensor in the driver side head.
Next morning i'm off to O'reilly's for the (3) Relays & the sensor. Change them out for nothing because now not only the same issues but now got another to go with it.
1, With my little hand held scanner it shows me my live operating Temp, truck up to 225 & no fan or fans kick on at all.
2, If i turn the A/C on with truck running, A/C Clutch will kick in & then the fans (Both) come on for a min until it all makes Tahoe run Rough & then die, turn it to heat same thing, runs rough then kill motor.
So, i've cleaned throttle body, installed new Temp sensor, 3 relays under hood, Switch in small A/C line.
Now i'm lost & need all the help i can get with this one.