89 3.9 v6 dakota dies when temp reaches normal
Thread Starter
Joined: May 2007
Posts: 1
Likes: 0
89 3.9 v6 dakota dies when temp reaches normal
i have a 89 dakota 3.9 v6 it starts fine runs great once temp gets normal it dies wont start wait till next day starts runs great you can almost set your watch to when it will die
Rookie
Joined: Aug 2004
Posts: 51
Likes: 0
From:
RE: 89 3.9 v6 dakota dies when temp reaches normal
The only thing different from engine warm-up mode (open loop) and cruise mode (closed loop - when the engine is at operating temperature) is that computer receives inputs from the oxygen sensor AFTER the engine reaches operating temperature. I don't think a bad oxygen sensor would cause it to die though.
Is the computer showing any codes? If you don't know how, go here to find out. Does it just die quickly, or does it spit and sputter and backfire before it dies?
Gerry
Is the computer showing any codes? If you don't know how, go here to find out. Does it just die quickly, or does it spit and sputter and backfire before it dies?
Gerry
Captain
Joined: Sep 2006
Posts: 582
Likes: 0
RE: 89 3.9 v6 dakota dies when temp reaches normal
Might be the temp sending unit. When they go bad will not run right. I you replace it get it from the dealer. I got one from local auto zone and still had same problem took it to the dealer after $98 they put in new one worked fine.