Q: Heater core hose pressure and overheating.

asked by on March 03, 2017

Heater core hose builds up pressure and comes off the engine valve when put back on still overheating.

My car has 170000 miles.
My car has an automatic transmission.

It sounds like you may have a restriction in your heater hose. The cooling system is pressurized and if a restriction exists within one of the hoses, this can cause the hose to pop off of the end the restriction is closest to. I would recommend replacing your heater hose and get new hose clamps. Tighten the hose clamps down very tight and that should resolve this issue. Consider YourMechanic for your heater hose replacement as it can be done from your home or office.

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

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

What should I do with my car,junk or keep it?

The way I look at it if it was my car is, would the car be worth more than the cost to repair it completely after the repairs are done. If the cost of the repairs would exceed 80% of...

my steering wheel pulls to the right and vibrates could it mean i need a inner tie rod or just balancing

Hi Adrezona. Thanks for contacting us today. When a car pulls to one side, there are two possible reasons. First and most common, the front suspension is out of alignment or second, the tire has what's known as a radial...

Car overheated and rattling

Hi. Overheating is a serious issue and can cause significant damage to the engine such as breaking the head gasket or even damaging the cylinders and pistons. You should have a certified technician, such as one from YourMechanic, inspect the...

Related articles

2012 Toyota Corolla vs. 2012 Honda Civic: Which One Should I Buy?
Compact cars are the unsung heroes, slightly larger than a subcompact, but not quite big enough to be classified as a mid-size sedan. These vehicles have a small wheelbase of no longer than 109 inches with between 100 and 109...
The Best Used Cars to Buy for Long Commutes
Most Most of us are faced with the prospect of commuting back and forth to work on a daily basis, but some have a much longer drive than others. When it comes time to buy a car, you need to...
Which Cars Last the Longest?
The best cars are ones that last the longest without needing much maintenance. The Honda Civic has low repair bills and can rack over 200,000 miles.