97 Jimmy all lights pulsating


Mojjee
02-03-2006, 04:07 PM
Within the last month every light started pulsating. Lights on dash, overhead lights, headlights. You name it. They all pulsate. I thought it might be the alternator but the alternator puts out a steady 14.9 volts.
I appreciate any ideas. Thanks.

Jimmy58
02-03-2006, 05:23 PM
Within the last month every light started pulsating. Lights on dash, overhead lights, headlights. You name it. They all pulsate. I thought it might be the alternator but the alternator puts out a steady 14.9 volts.
I appreciate any ideas. Thanks.
Hi Mojjee, Have been there and done that. If you look at my post you will find that I have a gremlin at work on my 99. Your pulsing lights sounds like the fuel pump surging. Use the test plug for your fuel pump and a ampmeter and see what it is drawing and also if it is pulsating. if so there is your culprit. Just a thought.
Keep us up to date.
Jimmy58:)

Mojjee
02-04-2006, 04:29 AM
Thanks, Jimmy 58. I wouldn't have thought of that. Although I've had a bad fuel pump on more than 1 occasion. I had this 1 replaced 4 or 5 years ago while it was still under warranty.But I know it can happen again. I'll check it out. Thanks

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