Have a problem on my 1986 Humvee M998. I changed the rear drivers side taillight and side marker. Taillight is old bulb style and side marker is LED. Hooked all wires back up and grounds also. Everything cleaned and dielectric grease applied. Went to start vehicle and when I click it wait it stays lite and there is a clicking noise every couple seconds. Truck ran before I changed lights. Also I made sure it's in neutral and both batteries are at 12.6 volts each. Any suggestions to get my baby fixed??
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Wait light stays lite and clicking noise
- Thread starter Rprovax1
- Start date
- 5,906
- 8,227
- 113
- Location
- Papalote, TX
Will have nothing to do with the lights you changed, have you disconnected the batteries for about 15 min. then tried again?
- 5,906
- 8,227
- 113
- Location
- Papalote, TX
You should put a voltmeter (or install a dash light as I have suggested to everyone) connected to one of the glow plugs and make sure the glow plugs do not have steady power for more than 8-10 sec. or they will burn out.
That clicking you are hearing may be the afterglow, the box pulsing the glow plugs.
Are you saying the truck will not even crank?
That clicking you are hearing may be the afterglow, the box pulsing the glow plugs.
Are you saying the truck will not even crank?
Yes I disconnected the batteries and reconnected and nothing.
Truck cranks but doesn't start.
- 5,906
- 8,227
- 113
- Location
- Papalote, TX
Put a voltmeter on one of the glow plugs and see if you are getting anything there.
Ok will do