Tool Tip: Fixing a Cooling System that is Pressurizing, with Coolant Being Blown Out of the Expansion Tank

Tool Tip: Fixing a Cooling System that is Pressurizing, with Coolant Being Blown Out of the Expansion Tank

Solv-Tec offers tip on fixing this cooling system leak.

 

This type of leak can be fixed with a quality sealant added to the cooling system without it first being blown out by the gases blowing back from the cylinders.

A couple of solutions are:

1. Remove a top hose from the radiator and pour the sealant into the hose so that it enters the cooling system directly.

2. Drain a few quarts of coolant/water from the system, mix this with the sealant and then pour it back into the system. This helps deliver the sealant right inside the cooling system, giving it the best chance of making a repair.

Even though there is pressure coming into the cooling system, there is almost always a small movement of coolant back across the crack as the pistons move up and down within the cylinder. The sealant is drawn into the crack and is then cured as the hot gases pass back through the crack. 

This solution is brought to you by K-Seal, www.solv-tec.com. 

 

You May Also Like

Schaeffler Recognized as a GM 2023 Top Global Supplier

This is the fourth time Schaeffler has been honored with this award.

Schaeffler announced it was recently recognized as a top global supplier of 2023 by General Motors during the automaker’s annual Supplier of the Year event in Miami, Florida. This is the fourth time Schaeffler has been honored with this award.

Emphasizing shared values between GM and global suppliers, the rigorous selection process distinguishes those who align closely with GM’s principles, Schaeffler said. These values, rooted in performance, innovation, cultural alignment, and commitment to GM’s ambitious goals, serve as the foundation of the selection criteria.

Driveshaft, Axle and Drivetrain Noise FAQs

Follow along to learn more about these unwanted noises.

Driveshaft Diagnostics

The big challenge with late-model vehicles is the diversity of driveshafts. 

Nissan CVT Clutch Point Relearn Procedure

The Adaptive Shift Control delivers responsive and powerful acceleration.

Diagnostic Test Drive For Drivetrain

A driveshaft center bearing can fail due to the bearing and the rubber isolator.

Other Posts
Schaeffler, ATSG Partner to Support Technical Education

Schaeffler will provide ATSG members with ongoing education and technical resources.

MEYLE Expands Electronics, Sensor Product Portfolio

The focus is on assistance systems and engine and transmission management, with more than 300 new part numbers.

FCS Introduces 42 New Numbers in May

Complete strut assemblies, shock absorbers, shock absorber assembly kits and suspension struts for popular VIO applications are included.

Philips Ultinon Drive 5000 LED Lightbar Line Expands

Lumileds has expanded the Philips Ultinon Drive 5000 series to include eight models.