Light flicker on 1st acceleration - Toyota 4Runner Forum

Mudeprived · 03-16-2019, 10:39 AM

This is a strange one. The truck had a headlight flicker ever since I bought it. The headlights would flicker once after 3 seconds into the first acceleration and never again until next morning. I would back down my driveway onto the road and it doesn't do it but it does once I start moving forward.

It is not a huge deal to me but I am wondering what would cause a one time flicker in the headlights on acceleration?

jgue467 · 03-16-2019, 11:09 AM

Loose wire? I'd start checking at the bulbs, maybe an ez fix.

Mudeprived · 03-17-2019, 07:14 AM

Quote:

Originally Posted by jgue467

Loose wire? I'd start checking at the bulbs, maybe an ez fix.

But it is kinda weird how it only does it once and at the exact same time every time. I changed the bulbs not that long ago and it did not change. I guess I will check the wiring.

LittleCaesar · 03-17-2019, 07:26 AM

Checked for a corroding connection. You could always see how many amps one side is drawing versus the other, to see if it is indeed a wiring issue.

phattyduck · 03-18-2019, 01:01 PM

ABS cycling once on startup. Its a couple seconds after you take your foot off the brakes while moving. (so, you could drive for a long time on the brakes and it wouldn't do it)

It happens for me just after I staring moving forward after backing out of the driveway.

-Charlie

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