Question about 1998 Plymouth Grand Voyager
Have a '98 Grand Voyager LE 3.8 engine. Rad. fans stopped working. Can't find the Fan motor relay. Has new radiator therm.in block but there is no built up pressure in hose running from block to radiator. No circulation in radiator after van has been running for 20 minutes. Coolant hot from radiator to block. Can anyone help me out on this one?
Aaaghhhh. you probably have an air bubble in the cylinder head. not good. poor as much antifreeze as you can into the rad (make sure the inside temperature is set to hot, that way any air in your heater core will be flushed through.) You need coolant to be in the hoses before you worry about the fan. Also, you can try "burping" the coolant system by filling up the vehicle (when its COLD) so that the coolant level is flush with the top of the rad. then place cap back on. start the motor. SLOWLY unscrew the cap to the half way mark. ensure not coolant squirting out. If okay, unscrew all of the way and check coolant level. fill as needed. try this, if you still can't get the fan to work, and you still don't have coolant circulating in the upper hose, here's my email
email@example.com (no porn subscription please)
Posted on Sep 28, 2009
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Posted on Jan 02, 2017
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Sep 22, 2015 | 1996 Plymouth Voyager
Trouble Code: P1491 You PCM does not sense current to radiator fan when it turns it on. Is the fan coming on or not? Usually not when you have this code. Problem can be with the fuse, relay, wiring or fan itself. First check the fuse. If good, next try swapping the relay with another one in the engine compartment relay box, such as the horn relay.
Let the car warm up and see if the fan will come on. If yes, get a new relay. If not, either use a test light to see if there is voltage at the fan connector when the engine is on and hot, or else test the fan motor by hotwiring it to the battery. If none of this works, please get back to me for how to troubleshoot the wiring.
Radiator Fan Control Relay Circuit Malfunction
Radiator fan control relay circuit is open or shorted to ground Radiator fan control relay circuit is open (test power to IGN) Radiator fan control relay is damaged or has failed PCM has failed
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