December 31, 2008I have a 2000 silverado 4.3 v6 and i just notice that im leaking coolant, its not a big leak, about every 4-6 weeks i have to top it off due to my light comes on saying its low on coolant, does anybody know how much this will run me and what it might be, is it a simple fix *or* something a mechanic has to do. HELP
Forums : Silverado (c/k) (1999 - 2006) : Coolant leak (5263 Views)
December 31, 2008I could be the ''Dreaded Intake Coolant Leak'' 4.3''s had these issues also.
Is the water coming from around the intake area? Dripping around the back of the engine?...JohnB
December 31, 2008I have this problem with my 99 too. Mine is the 5.3. I have been topping off the coolant for about 2 years now. They cant seem to find the problem. I first found the water pump leaking...that was changed. Then it was leaking from the hose to the water pump. It is still leaking somewhere. I usually see it leaking when the truck is parked on a hill with the front down. It appears to be leaking out of someplace near the wheelwell on the right side. Maybe its a hose to the overflow tank. Once the holidays are over, I want them to look at it again.
A coolant leak could be many things. Water pump, hoses, radiator, heater, head gasket.
December 31, 2008slow leaking on chevy motors is usually from the intake manifold gasket. Water pumps and hoses tend to be a quicker leak.
December 31, 2008^^^Not necessarily. Mine had a slow leak with the water pump, water pump hose, and what ever else it is. I usually have to put in coolant about every six weeks. The water pump was just a slow drip, and so was the hose.
December 31, 2008the midas tech guy told me it was the intake coolant leak. and it would cost me like 1200.00 to fix, is this true, *or* is it something i can fix *or* a local garage, if so how much should i look on spending to fix this leak? i couldnt really tell where it was coming from myself, but all i saw under my truck was the orange coolant and the midas guy told me it was the intake coolant leak. is this a gasket? if so where can i purchase it and is it costly? Thanks for all of your inputs.
January 1, 2009Anybody try bars leaks *or* the GM anti leak tablets I have read about before? It seems worth a try.
January 2, 2009$1200 for a intake gasket job is pretty high IMO. I did mine in about 6 hours of actually work, and that was the first time i ever took my intake manifold off. Im sure if i were a mechanic i could do it in a couple hours. It was a $60 gasket kit, plus the $15 repair manual. IMO, do it yourself, its not hard, just time consuming.
January 2, 20091200 is high i think 7-800 is reasonable cuase it is alot of work but you can do it yourself...imo have another car *or* something to drive it may take 2 days of working on it cuase you def dont wanna rush this repair and have a buddy to help
January 3, 2009what about buying this product from the local Kragens, do you guys think this will temp. fix the problem.
K & W Chemical Instant Cooling System Stop Leak: w/Nanotechnology:
Using Nanotechnology, this product fills in cracks & crevices other products can''t, making a stronger, more solid bond that''s permanently hardened to the surface area.
Instant pour-and-go results. Fills cracks and voids for a strong bond. Add directly to coolant to seal leaks in cylender heads, gaskets, blosk and throughout cooling system. Aluminum engine blocks, cooling systems, cylinder heads, engine blocks, freeze plugs, head gaskets, heaters cores, iron engine blocks, metal radiators, plastic radiators, radiators, water pumps.
let me know what you guys think. Thanks.
January 8, 2009I had the same problem, it turned out to be the water pump.
There is a weep hole at the bottom of the water pump that will start dripping when the pump is about to go (it is designed to do that). Look under the engine near the front as soon as you park and see if there is a small drip. If there is, it is time to change the water pump.
Cost: About $120 for the pump
Time: 2-3 hours
Difficulty: Easy to Intermediate depending on your skill level.
January 17, 2009I''m having the exact same problem. It''s not a major leak, but I noticed while changing my oil today that it''s damp on the front part of the engine with coolant.
It seems to only leak to a certain point, then it stops. I''ve topped it off a couple times, but it simply leaks until the overfill container is half-full, then it seems to quit.