Question about Chevrolet Silverado 2500

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Coolant leaking from under engine 97 5.7l silverado

I've been chasing a coolant leak under my engine for days now. The top of the engine is dry, I've replaced the water pump, checked the hoses and rad, replaced the heater hose quick release fitting on the intake manifold and thought I had it fixed but a drive to Costco after and it was still leaking the same or worse. I just can't seem to find where the leak is coming from. Has anyone else had this problem with this model and could give me a clue as to where it could be coming from? Thanks in advance .

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It is most likely the water pump, the air flow under the engine causes the coolant to go back under the truck. Fell under the front of the water pump for moisture or a slimy liquid.

Posted on Oct 26, 2012

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Posted on Jan 02, 2017

  • 341 Answers

SOURCE: coolant leak

You may want to check it with an ultraviolet dye and light kit.You can get a kit from a good auto parts store and do it yourself. They have dyes for every kind of fluid a car has. A very handy tool and not very expensive either.

Posted on Nov 26, 2008

  • 2 Answers

SOURCE: coolant is still leaking

the water seal at the housing is bad. check the oil if it looks like vaseline the motor needs to be rebuilt.

Posted on Feb 17, 2009

  • 42 Answers

SOURCE: Coolant leak on 2001 Taurus.Coolant seems to be

heaterhose is in that general area. most common leak is that spraying aroung so it looks like something worse

Posted on Mar 17, 2009

  • 6982 Answers

SOURCE: coolant fluid leaking below carberator 1989 dodge daytona

May not apply to yours, but I have seen coolant lines routed under intake (actually through plenum below carb)...the idea is to pre-heat and vaporize fuel to prevent "puddling" under carb. If you look at most v8 engines, exhaust is routed the same way, to do the same job. You may need to use a mirror to see under there to determine exactly what's going thats causing leak.

Posted on Apr 05, 2009

  • 56 Answers

SOURCE: coolant leak at back of engine

the leak is a busted water plug.a 2 inch chrome plug that inserts in the block.

Posted on Jan 17, 2010

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A puddle under the car should give an idea as to where the leak originates. Arrange to park on top of a sheet of cardboard so that any leak will drip onto it. Check it later in the day or the next morning prior to starting and driving off. If dry, reposition the cardboard under the car again, and start the engine and drive off the cardboard. Park and retrieve the cardboard and inspect for wat spots. In either case, if water is found, you can use the cardboard to approximate the location of the leak. Bear in mind that the leak could drip onto a part - and floow the part to a low point before dripping on the cardboard.

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A little coolant on the ground is nothing to worry about. Make sure that the coolant level is not dropping consistantly, and you should be ok. If it is always requiring that you add coolant, it is the sign of a leak somewhere.

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