MemphisMan Posted April 21, 2017 Report Share Posted April 21, 2017 In my '95 Cutlass LQ1 all lights have been pulsating for as long as I can remember. As RPMs increase, the pulsating increases to the point it's not noticeable. I replaced the alternator in January of 2012, but the pulsating has always been there and is not a new issue. I'm not thinking I need to necessarily do anything at this point, but I do wonder what it is. Any ideas? Thanks. Quote Link to comment Share on other sites More sharing options...
94 olds vert Posted April 21, 2017 Report Share Posted April 21, 2017 I have never had this issue on my 94 CS. I'm thinking the voltage regulator. Check your grounds for corrosion. That is the only thing I can think of. Quote Link to comment Share on other sites More sharing options...
Psych0matt Posted April 22, 2017 Report Share Posted April 22, 2017 The van does this too... Quote Link to comment Share on other sites More sharing options...
Nas Escobar Posted April 22, 2017 Report Share Posted April 22, 2017 I would check and upgrade the grounds on the car to a bigger gauge wire. I used to have this issue on my Grand Am (but I was running a 1000 watt amp) and I did the big 3. Helped it tons. I may end up doing it to the Infiniti as well. It pulsates a lot. Quote Link to comment Share on other sites More sharing options...
Schurkey Posted April 22, 2017 Report Share Posted April 22, 2017 START by verifying the condition of the battery. You will need to have the battery load tested, after assuring that it has 12.6--12.7 volts with the engine shut off for an hour. (Fully charged) Then verify that the connections at the battery--the battery terminals at the battery case, and the connectors that press against the battery terminals--are bright, shiny silver instead of fuzzy green or dark, blackish. How fast is the pulsing at idle? Many times per second? Once per second? Once every ten seconds? Do you hear any clicking at the fuse box? (Circuit breaker popping and re-setting?) Is there an electrical accessory that doesn't work properly? Imp558 and 95GS 2 Quote Link to comment Share on other sites More sharing options...
cutty collector Posted May 13, 2017 Report Share Posted May 13, 2017 If youre van Is an early uplander there was a recall on those can't remember whether we replaced the regulator or complete alternator on those units it was a long time ago but I remember the problem and I know I have one or 2 alternators at home that I still have to destroy for warranty hehe Quote Link to comment Share on other sites More sharing options...
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