October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Coolant Temperature Switch Test

With engine temperature at least 122°F (50°C), disconnect temperature switch connector. Attach one lead of ohmmeter to coolant temperature switch (on block under intake plenum) and the other to ground. See Fig 1 . If switch is okay, it will show continuity. Remove ohmmeter and install electrical connector.

Fig 1: EGR System