04 Trailer Blazer gushing coolant

[villawolf01]

Traveling and started to notice spots were getting bigger as we would pull into gas stations. Finally the coolant started pouring out near the passenger wheel well, like if you to a full coolant bottle and were pouring straight to the floor.

Is this from the heating core? Replaced a small regulator that appeared to be stuck, but it still leaking, but not as much.

I was told I could dona by pass to the heater core, but I can am get different advice:
1. Cut the hosed close to the fire wall and do bypass their.

2. Cut the hoses closer to the engine get a couple 5/8 quick connects, 2 wire clamps, and an elbow.

Is one better than the other? I've been searching for a video online on how to bypass on the 2004 Trail Blazer, but no luck. I've seen other videos, but the bypass video shown don't exactly apply to to the 04 Trail Blazer.

 

[HeavyChevy4200]

The heater core is in the dash. If the heater core was leaking you would have coolant inside the cab and puddling on the floorboard.

 

[villawolf01]

Thanks, your the first person that has told me that. Any suggestions?

My passenger bottomed out really bad when pulling out of a gas station full of puddles I picked the wrong puddle it was a deep hole.

 

[HeavyChevy4200]

You need to find the leak. Get a radiator pressure tester. Some auto parts stores even rent them. Its a small hand operated pump that will pressurize the coolant system to operating pressure. Allows you to find a leak without having the car running.

 

[villawolf01]

Thanks again!

 

[triz]

How's the coolant reservoir tank? Did you poke a hole through it?

 

[coolasice]

i doubt a coolant pressure tester will matter if it is pouring out... simply fill coolant system with water and start the truck and watch where it is coming from. could be just a heater hose that came disconnected or busted.

 

[villawolf01]

Triz, At times it is completely empty and at other times is is low. I took out the reservoir and there weren't any holes punctured, at least that I didn't see.

You you have an idea a possible place behind or near the passenger wheel well that would pour out the coolant in buckets when over heated. I took out the the air filter, both the coolant & window washer reservoirs there was a small black plastic regulator that seemed to be locked, but not large enough allow the amount of coolant that was leaking.

 

[triz]

Did you check the overflow tank hoses?

 

[Wooluf1952]

Welcome

In case you haven't heard:
http://gmtnation.com/forums/topic/218-welcome-to-gmtnationcom-heres-the-story/

Your EXT has the extra Heater and AC lines going to the back of the truck. You may have damaged one of those when you bottomed out .

 

[coolasice]

Welcome

In case you haven't heard:
http://gmtnation.com/forums/topic/218-welcome-to-gmtnationcom-heres-the-story/

Your EXT has the extra Heater and AC lines going to the back of the truck. You may have damaged one of those when you bottomed out .

+1 did not know it was an ext(lacking on mobile site). also check bypass valve... there hace been reported failures of these.

 

[villawolf01]

Thanks everyone, I will check both and also update profile to include EXT.