Q: I have a coolant leak at the bypass pipe, where the hose from throttle body to the bypass pipe. 2000 Chevrolet Venture

asked by on

THe hose connecting the bypass pipe to the throttle body leaks when driving, stop and wait with engine running a few minutes it stops, You can run the engine for as long as you want and no leaks. Drive around the block and it leaks again then stop and after a few minutes it stops leaking again. I'm at a loss, I changed the clamp type and location no change.

My car has 366000 miles.
My car has an automatic transmission.

Hi there - I suspect there is a tiny crack in the coolant bypass tube that is, against all odds, sealing itself as coolant temperature comes up. I recommend a coolant bypass tube replacement by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, and replace this part to avoid future problems.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I have a coolant leak at the bypass pipe, where the hose from throttle body to the bypass pipe. 2000 Chevrolet Venture

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Car shakes and jerks

Hi there, when you say jerking do you mean a vibration or changing in speed? If the car changes in speed, then you should make sure your fuel pressure is okay. Other Impala owners have reported a shaking at startup...

Q: The trunk lid wont stay up by its self have to hold it up with my hand. Its a Oldsmobile alero 2004

You will need to replace both of the trunk lid support shocks. They will lose their gas charge over time and will no longer support the lid weight.

Q: Swollen coolant water pump bypass hose

The small hose that comes from the bottom of the thermostat housing and has a small bend then goes straight down into the top of the water pump is called the water pump bypass hose. This is the hose you...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...