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09-16-2008, 09:04 AM #1
'Burban gurgles - that's normal, right?
Mostly when I shut it off and everything is quiet. The gurgling happens behind the passenger glove box/dash. I figure it's normal gurgling but have never heard it that loud on a vehicle before. It does it while driving as well but I either don't notice it as much or it's not as pronounced.
09-16-2008, 10:12 AM #2
I wouldn't assume all normal. Probably the first thing I'd check would be coolant level. That sound is often "air" being pumped through the heater core because the cooling system is low. This can be bad news, especially if you still have Dexcool in your system.'98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
'92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
"My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World
09-16-2008, 12:07 PM #3
yeah I don't know that that is normal. I never had it happen on either of my suburbans or my truck.Dan
1999 GMC Sierra 2500 350 vortec
1967 Jeep M725 ambulance 230 tornado
1990 Cherokee Limited- 3 inch lift on 33's
...and every one of em has issues
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09-16-2008, 12:26 PM #4
My 99 doesn't do it, but my dad's 94 does. Never had any issues with it.Gary
99 K 1500 Suburban
78 Silverado Big 10 w/factory 454
00 S-10 Blazer
1976 Trans Am
1980 Honda CB900 Custom
09-16-2008, 01:17 PM #5
Well, sounds like it merits a looksee at least.
Thanks to all!
09-16-2008, 02:28 PM #6
Found this on the internet -
"Unless the engine is overheating, you have air trapped in the system. Park the car on an incline or jack up the front as far as possible. When engine is cold, remove the radiator cap, set heater controls to hot, and start the engine. Make sure the radiator is full and watch for air escaping. Keep the coolant level full and when you see not more air bubbles escaping, you are done. Replace the radiator cap, and see if the sound goes away. If not, take it to a professional."
09-16-2008, 02:29 PM #7
09-17-2008, 12:00 AM #8
i agree--not normal. and you do have air in the system. check the level, the raditor cap is mostly to blame for this. the seal goes and it allows water to the over floe but when cooling air seaps in the cap (if the over flow is full....mikeMichael Collins
1993 4X4 Suburban
many other toys as well
09-17-2008, 09:47 AM #9
Well, looked it over and found that, indeed, the coolant was low - practically empty in the bottle.
The radiator still flows well - took the cap off and, as stated, started the truck up with the cap off, heater on. I could see the coolant flowing in a nice steady stream.
Manual states "dex-cool"... or something like that.
Although it's probably been mentioned before - what is the general opinion on the pre-diluted 50/50 stuff?
Thanks for all the help. My membership fee to GMTC is really paying off. Best $150.00 I've spent this year...
09-17-2008, 10:40 AM #10
if the price is right then no issues. my thought is "I can add the water and get a full bottle that i paid for. mike
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