91 Grand Voyager Poltergeist, Electrical

[john kestyus]

We have a problem with the Warning Lights, Fuel Gauge, Oil Pressure, Temp and the Electric Door Locks. Hear are the symptoms.
We have a 1991 Plymouth Grand Voyager LE with the 3.3 V6.
You can be driving and all of the sudden, all the dash warning lights flash off and on. at the same time, the door locks are going up and down. The van continues to drive normally. the other symptoms are this,
1) The Fuel gauge will show empty and the DTE will go to zero and the little illuminated fuel pump lights up, but the tank has plenty of fuel.
2) the Temp gauge will go all the way to cool.
3) the Oil gauge will go all the way to no oil pressure.

We have replaced the battery and I have looked everywhere for a short or whatever. I have been told the 91 Grand Voyager has no BCM.
Please help!

Thank you to anyone who can help.

John Kestyus

[capoeta]

just a shot in the dark, but could it possibly be your ingnition switch or harness/plug that attaches to it?

do you have the automatic locks on doors? the locks on my doors close automatically at 10mph+ speed.. I have issues with my door sensor and it opens/closes by itself if door is not closed right.

Could be that your ignition open/closes contact as steering column vibrates...


The dashboard lights and could be tied to it also, everytime you turn on ignition on Van, the system will test lights, and sensors.


other than that I would think the dash and doors would be separate issues.

door locks. door sensor not closing correctly.. dashboard lights: loose grounds.

hope this helps.