WHAT'S NEW Home FAQ'S FIX MY C900 FIX MY 9000 FIX MY 9-5 JEFF'S SPG LINKS DIY OIL OTHER
Drop Down Navigation Menu by Vista-Buttons.com v4.5.0



Top of Screen Step 1 Step 2

COOLANT BYPASS VALVE
Step 2


The valve has a tie-wrap holding it onto the firewall. You need to cut this off with some wire cutters.

Pull off the vacuum line at the top of the valve and then pull off the control module. The module bracket just slides down. You can see how it attaches by looking at your new valve!
I did this project when my engine was completely cold and I did not leak very much coolant at all when disconnecting all of the hoses.

To remove the hoses you need to use a good set of pliers and squeeze the hose clip together and then slide it down the hose.

I have a very nice set of vice grip pliers to do this. I pulled off the right hose first, then proceeded to the top left hose and ended with the bottom left hose. I had to use a small flathead screwdriver to pry the hose off of the old valve. Don't go crazy here, you just need to break the seal, you don't want to damage the hose! Once I did this I was able to twist the hose off of the valve pretty easily.
Putting the new valve on seemed to be much easier than getting the old one off.
  • Reconnect the three hoses starting from bottom left, then top left, then the right side.
  • Reconnect the module bracket at the rear of the valve.
  • Reconnect the vacuum line to the top of the valve.
  • Attach a new tie wrap to hold the valve in place.
Now just replace the wiring harness plug and you are all done!
  • Remove the bungee and set the bracket back into place.
  • Tighten the two 10mm nuts.
  • Reconnect the three vacuum hoses.
  • Reconnect the small connector near the vacuum hoses.
  • Reconnect the main harness plug by pushing in the red tab.
  • Put the cover back on press down on the rubber weather stripping.
Congratulations, you are done!

You probably should do a leak check after driving the car to make sure the new valve isn't faulty.


Top of Screen Step 1 Step 2