97 f-250 electrical problem

Chad T · #1 (**permalink**) 08-22-2007, 01:30 PM

OK I have a 97 f250 7.3 auto 4x4 crew. I just noticed this the other day that when I use the cruise control and turn on my left blinker it kicks it out of cruise control. Only the left turn signal not the right. Also when I use the left turn sinal the RPM's will increase 200-400 depending on the speed

.Any Ideas. Thanks

97_stroke · #2 (**permalink**) 08-22-2007, 01:53 PM

Mine does the same thing during cruise control, except its my right blinker. Ive just learned to live with it.

**pipelayerjdh** · #3 (**permalink**) 08-22-2007, 04:34 PM

My cruise only works when it feels like it, mostly never. You may try changing the multifunction switch, but I'm not sure. The cruise is supposed to cancel when the e-flasher is turned on, so it my be in the column. I'm still trying to figure out the entire cc system so i can fix mine.

***TexasR.N.*** · #4 (**permalink**) 08-22-2007, 04:41 PM

This is just a shot in the dark.......but I had that happen awhile back and it turned out I had a brake light out. IIRC someone once told me they (Ford) did that to let you know there was a brake light issue. True or false I don't know, but like I said I did have a light out.
Craig

***fordnut85*** · #5 (**permalink**) 08-23-2007, 03:26 PM

Could be a light out or it could be a wiring issue or like said before it could be the multi switch. your cruise is designed to release if the brakes are pressed witch is why the cruise stops when you put the 4-ways on.

cptpablo · #6 (**permalink**) 08-23-2007, 07:35 PM

Mine has done that for about 5 years now.
Im interested in this one!!!
I think it has something to do with the voltage drop across the blinker/brake light circut..

Chad T · #7 (**permalink**) 08-24-2007, 06:22 AM

I went out and checked my brake lights like HappeetxnRN suggested and my right brake light was out. I haven't tried the cruise yet but I'll let you know if it works. Thanks

Chad T · #8 (**permalink**) 08-26-2007, 05:51 PM

1 Right brake light was the problem. Replaced the bulb and fixed. I wish they were all that easy. Thanks

***chado*** · #9 (**permalink**) 11-02-2007, 02:48 PM

Ya, my 96 is doing the same thing. Right or left blinker doesn't matter, the cruise gets shut off. Unfortunately my tranny does some funny shifting at the same time. Would love to know what on earth is causing this..... Later chado

***TexasR.N.*** · #10 (**permalink**) 11-03-2007, 07:43 AM

Glad to hear it worked.
Craig

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