This week we will be covering part 2 to When to Change Brake Fluid blog posts for November. You can read part 1 on our Blog.
Step 8
Place the end of the test strip with the test medium on it into the master cylinder brake fluid.
Step 9
Keep the end of the test strip submerged in the brake fluid for a few seconds. Remove the test strip and compare the color of the test pad on the strip to the rating system chart on the container or customer card.
Step 10
The individual two strip package contains the identical test strips. It just has two strips per packet and is intended for individual testing by consumers.
Step 11
As before, insert the pad end of the test strip into the brake fluid for a few seconds.
Step 12
Compare the color of the pad end of the test strip to the printed rating system chart. If the color indicates 200 -300 ppm brake fluid service is required.
Step 13
Failure to service brake fluid when needed can lead to many undesirable situations such as the restrictive fluid flow problem shown in the ABS valve body in this image. This vehicle had never had the brake fluid serviced and was a commercially used rear wheel drive passenger vehicle.
Step 14
This is the ABS valve body filter screen for the valve body shown in Step 13. ABS braking operation most likely would have been curtailed because of the inability of the brake channel to pass fluid through it in an ABS controlled stop.
We will have more of the story on When to Change Brake Fluid next week for Tech Tricks Tuesday.
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