Removed Coolant To TB
07-18-03, 03:36 PM
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Removed Coolant To TB
I removed the coolant from the TB by splicing the 2 lines together do i need to go into the TB and remove a cold start sensor? it seems to idel at 1500.. like it is not senseing liek its warmed up.? thanks!
Tyler
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07-18-03, 04:12 PM
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If you are bybassing the "thermowax" cold start fast idle stuff - yes it will continue fast idle.
If you can do without the fast idle, that whole coolant circuit can be capped off.
The place where it comes out of the rear housing under the UIM is a common failure point.
Nobody seems to know why it goes by the BAC.
If you can do without the fast idle, that whole coolant circuit can be capped off.
The place where it comes out of the rear housing under the UIM is a common failure point.
Nobody seems to know why it goes by the BAC.
07-18-03, 04:43 PM
#3
boost on the way(GTU II)
well my mechanic tells me the coolant line to the bac is to warm the intake to a certain degree.. in order to get the idle to 750rpm...i think thatz what he said... lol i removed coolant lines to the bac
jack
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07-18-03, 04:47 PM
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The coolant to the throttle body serves two purposes:
1. Warms thermowax/cold start cam assembly
2. Keeps BAC from freezing in winter, and overheating in summer.
You have the high idle because you have removed the coolant flow to the cold start assembly. The wax is not melting, thus the cam is pushing the throttle open and giving the 1500 RPM idle. Either put the coolant line back, or do the full throttle body mod.
1. Warms thermowax/cold start cam assembly
2. Keeps BAC from freezing in winter, and overheating in summer.
You have the high idle because you have removed the coolant flow to the cold start assembly. The wax is not melting, thus the cam is pushing the throttle open and giving the 1500 RPM idle. Either put the coolant line back, or do the full throttle body mod.
07-18-03, 10:51 PM
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****Nobody seems to know why it goes by the BAC.***
Anti-ice purposes in the winter! Cold, wet air could cause the bac's diaphram/valve to ice up. I've bought into that idea all the way. I'm also the fellow who thought it was to cool the bac a year or so ago. Oh, well.
Anti-ice purposes in the winter! Cold, wet air could cause the bac's diaphram/valve to ice up. I've bought into that idea all the way. I'm also the fellow who thought it was to cool the bac a year or so ago. Oh, well.
07-18-03, 11:33 PM
#6
boost on the way(GTU II)
hahaha..... i had the tb mod done before(correctly) and it hadnt messed with my idle to make it go down .....still kinda high ,1500rpm . just didnt wamr up by itself.. i had to manually do it by holding the gas for a min or so ... (in the morn)
jack
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07-19-03, 09:08 AM
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Originally posted by Aaron Cake
1. Warms thermowax/cold start cam assembly
2. Keeps BAC from freezing in winter, and overheating in summer.
1. Warms thermowax/cold start cam assembly
2. Keeps BAC from freezing in winter, and overheating in summer.
I had assumed it was something like that when I did the TB mod & removed the circuit.
Here in Florida freezing is not a worry.
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07-19-03, 11:24 AM
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Originally posted by SureShot
Thank you..
I had assumed it was something like that when I did the TB mod & removed the circuit.
Here in Florida freezing is not a worry.
Thank you..
I had assumed it was something like that when I did the TB mod & removed the circuit.
Here in Florida freezing is not a worry.
07-19-03, 01:35 PM
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I did notice heating diffrences.. My temp gauge would rise faster then normal.. i would hope thats what your taking about.. ill pop the lies back on and see what happens 
thanks! ill let you know
thanks! ill let you know
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