Jump to content
Sign in to follow this  
Bradford

98 ch with E7 Etech 4-2 code

Recommended Posts

I've got a 98 ch 612 with e7 etech and it keeps intermittently ringing the buzzer with the shut down light. I replaced the fan clutch solenoid and it went away for a few hours. Now the light and buzzer still come on. I slammed my tailgate today and it shut off. Still flashing a 4-2 code. I checked the wires on the coolant sensor and they seem okay along with the ac high side pressure sensor. Do I need to replace both sensors? 

Share this post


Link to post
Share on other sites

Now I just got it started back up and when I shut my hood it shut back off. Is my wiring harness shot, and letting wires rub during the right vibrations? 

Share this post


Link to post
Share on other sites
  • 4-2 is "fan clutch output" according to my sheet.
    Is coolant temp high?
  • may have to replace fan clutch

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

Welcome to BMT!

...The world's best antique, classic & modern Mack Truck support forum! Founded in 2000, BigMackTrucks.com is the place to go for everything related to Mack Trucks!

BMT!

BigMackTrucks.com is owned and operated by Watt's Truck Center, New Alexandria, PA. This forum and it's contents are not affiliated with Mack Trucks, Inc. or Volvo Trucks North America.

×