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Old 10-27-2011, 06:04 PM   #1 (permalink)
musclecarboy
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Coolant leak, should I use stop-leak products??

After a pressure test, my mechanic said the water pump is leaking slowly. About $800 labor and parts to change but he can't do it until next week and I have a 2,000 mile trip pulling 5t leaving tomorrow I NEED to take. Should I dump in stop-leak or just carry some coolant as I go and not worry about it? To be honest it's been 2,000mi since it was topped up and it has maybe lost 6-10oz. Is there any concern here?
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Old 10-27-2011, 06:08 PM   #2 (permalink)
thee craig
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NO STOP LEAK!! works, works too well, the Cu will clog capillaries that run thru ur egr cooler or anything of that manner. if you're only leaking a little carry extra water
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Old 10-27-2011, 06:28 PM   #3 (permalink)
musclecarboy
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Quote:
Originally Posted by thee craig View Post
NO STOP LEAK!! works, works too well, the Cu will clog capillaries that run thru ur egr cooler or anything of that manner. if you're only leaking a little carry extra water
It's an LB7 so there's no EGR but I was thinking it would stop flow in more places than you really want
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Old 10-27-2011, 10:51 PM   #4 (permalink)
Charlie B
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musclecarboy, what makes you think an LB7 does not have a EGR system.

A LB7 with California emissions has EGR sytem. for your info===charlie
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Old 10-27-2011, 10:58 PM   #5 (permalink)
musclecarboy
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musclecarboy, what makes you think an LB7 does not have a EGR system.

A LB7 with California emissions has EGR sytem. for your info===charlie
Trust me I don't have anything. I'm not talking out my @ss I've done the research
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Old 10-27-2011, 11:04 PM   #6 (permalink)
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Don't use the Stop Leak. How much does it leak?

Puddle under the truck? Fix it.

Low Coolant light once in awhile? I had this problem too (mine was low coolant light every 6 months or so) and I put off the water pump replacement for about 3 years. I always carried a gallon of 50/50 mix and it was enough for the whole 3 years. Since you know you have the problem make sure you check the coolant level more often instead of letting the "Low Coolant" light tell you. BTW, mine was $900 + to fix.
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Old 10-27-2011, 11:24 PM   #7 (permalink)
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Excuse me, but it is the way you typed it. you said , its an LB7 so no EGR.
LB7 do have EGR with California emissions. I thought you were saying all LB7's have no EGR's, not just your truck. sorry I ruffled your feathers===charlie
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Old 10-28-2011, 07:28 AM   #8 (permalink)
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Quote:
Originally Posted by Charlie B View Post
Excuse me, but it is the way you typed it. you said , its an LB7 so no EGR.
LB7 do have EGR with California emissions. I thought you were saying all LB7's have no EGR's, not just your truck. sorry I ruffled your feathers===charlie
No ruffled feathers, just figured you would see I'm from Canada not an emission state
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Old 10-28-2011, 11:30 AM   #9 (permalink)
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I have used Stop Leak before, Not in this truck, a gasser.
I used the Bars Leak with the pellets in it, and as soon as the leak stopped which was a large leak in the Radiator, I drained and refilled the system to get the crap outta there. This is just a band-aid fix.

But since your leak is so small, I recommend you try running your Tank cap loose so it does not pressurize, I had a pissing pump and did this for a year. Since you will be towing, I HIGHLY recommend you keep a sharp eye on the temp gauge because since you are not pressurizing the system, it could get alittle hotter, so just watch that!

Like I said, I ran a year with a loose cap till I got around to changing the pump, so it helped me alot!

Good Luck with your trip!

And I to have the EGR and Cooler, even though I have the system turned off, the cooler is still a player till I bypass it!
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Old 10-28-2011, 02:01 PM   #10 (permalink)
thee craig
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Point I was trying to make is that things like it heater core n such can get clogged, egr is a quick easy reference for u to get the point
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