Q: Bypassed my heater core and refilled my reservoir tank for coolant checked it after two days it's getting low again

asked by on September 14, 2017

Bypassed my heater core and refilled overflow jug and checked two day's later was getting low again

My car has 102000 miles.
My car has an automatic transmission.

Coolant is leaking Inspection $79.99 - $89.99 Get a Quote

I can’t help but think that there is a little more back-story here. But I presume you bypassed the heater core because you had a leak inside the car. That’s something you can do if you don’t need heat of course, though it sounds like that may not be the only leak in the system. The only way to see for sure is to do a pressure test on the system. There could be a small leak that is evaporating as it leaks so you don’t see a spot under the car. A pressure test should show that for you. In really difficult cases there is a dye that you can put in the cooling system that glows under ultra-violet light. Then it’s an easy matter to see the leak using a UV source. In any case, you can contact YourMechanic to have that checked at your convenience. They can send a technician to your home or office to check out your coolant leak and let you know what it will take to solve it.

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

What others are asking

Does the battery on a 2012 Lexus rx350 need to be changed at the dealership or can I replace it myself

Hi there. On newer vehicles, replacing the battery is not as simple as it once was. There is an ECU programming that is required on your Lexus, but one of our mobile mechanics should have the right digital scanner to...

How do I put my truck in gear?

There are many gears that your truck can be shifted into. These gears tell the car whether to drive, stay still, or move. To put your vehicle into gear. Hold down the brake pedal. Start the vehicle. Move the...

I have a 2015 chevy Malibu, and the engine power reduced is on the dash. I have changed the throttle body, and the acceleration pe

An issue such as this would likely be associated with a check engine light. I would recommend having a qualified professional inspect your vehicle to determine the exact cause of this issue. Consider YourMechanic as check engine light inspections can...

How do I replace the seat belt pre-tensioners?

The seat belt pre-tensioners are safety features on your front seats that help the seat belts keep you secure in the event of an accident. The pre-tensioners can only be used one time, and cannot be repaired. If you have...

How do I adjust the throttle and brake pedal positions?

Some vehicle models are equipped with a feature that allows you to alter the position of your throttle and brake pedals. Please note, the following adjustments cannot be made while the vehicle is in reverse or using the cruise control...

Pinging sound a

Hey there, thanks for writing in about your 2012 Cadillac Escalade. A pinging noise is typically used to refer to spark knock or a damaged engine running condition. Did the Check Engine Light return with the same codes after doing...

The transmission is slipping.

Hi, thanks for writing in. It seems that the clutch disc is most likely worn to the point that the pressure plate cannot fully engage and lock the clutch to the engine. If that is the case, you will need...

How do I remove the head restraints?

The head restraints can be removed very easily. To do so, simply press and hold the release button at the bottom of the restraint legs, and pull the restraint up until it is removed.

Check Engine Light on - 2007 Mazda CX-7

Hi there. When the Check Engine Light comes on, it will store a trouble/fault code in the engine control unit. It will remain on as long as the ECU continues to see the fault that turns it on. If it...

Related articles

A Buyer’s Guide to the 2012 Jeep Patriot
Those Those who love getting off road will often turn to a Jeep. The 2012 Patriot could be a good choice for those who want a quality vehicle for the roads, and when they decide to venture off the beaten...
The Best Used Cars to Buy If You’re a Wedding Planner
As As a wedding planner, the demands placed on your time are going to be significant, even if you’re only dealing with one or two couples. You need to be a master juggler when it comes to your time and...
A Buyer’s Guide to the 2012 Ford Fusion Hybrid
The The 2012 Ford Fusion Hybrid is a really great choice for anyone looking for a mid-size sedan. Not only does it boast plenty of room for people and cargo, but it also has a good amount of power and...