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1978 F150 idiot brake light


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#1 BigRed1978

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Posted 10 May 2017 - 09:59 AM

Hi All - 

Im new to the forum so I appreciate any help!!

 

Ive recently acquired my father's 1978 Ford F150 Ranger XLT, 351 cleveland, 4WD blah blah blah (more info, just don't want to bore everyone with unnecessary info)...he passed away in January and left me the truck

 

Anyways, my first part to address is a "stuck" red brake light on the dash. It stays on always. The brakes appear to operate fine - at least no worse than expected. Just driving the beast around town for ice-cream with my daughter for now....

 

Ive checked the master cylinder and the reservoir is full. After that I am stuck.....cant pass emissions without this first fix. 

 

Any ideas?

 

 



#2 BigRed1978

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Posted 10 May 2017 - 11:25 AM

UPDATE - if I'm learning the right info - the master cylinder has nothing to do with E-brake light on dash and there are no electronics on this MC to give warning to braking system....so this MUST be a problem with e-brake.



#3 miesk5

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Posted 11 May 2017 - 04:23 AM

Yo BigRed1978,

Welcome!

My condolences to you and your family on your dad's passing.

 

This from the 1979 Bronco/F Series Electrical & Vacuum Troubleshooting Manual by topsig (Ziggy) @ http://www.supermoto...y/24302/83503-2

 

1979-bronco-f100-through-f350_page_28.jp


96 Bronco, E4OD, Man Xfer Case & Hubs
See my Big Bronco & F Series Technical & Parts LINKS site. Will need to clean up dead links & add many more new links some day. Thanks to Mr. Schwim! http://schwimserver5.com/?index=1128
Thanks to All Who Serve

#4 miesk5

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Posted 11 May 2017 - 04:49 AM

Yo,

Can only post one pic at a time. 1979-bronco-f100-through-f350_page_29.jp

 

Btw,

1978 Pickup Brochure @ http://www.fordifica...?g2_itemId=4150


96 Bronco, E4OD, Man Xfer Case & Hubs
See my Big Bronco & F Series Technical & Parts LINKS site. Will need to clean up dead links & add many more new links some day. Thanks to Mr. Schwim! http://schwimserver5.com/?index=1128
Thanks to All Who Serve

#5 BigRed1978

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Posted 11 May 2017 - 08:11 AM

THANK YOU



#6 miesk5

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Posted 11 May 2017 - 12:04 PM

Yo,

You are most welcome!


96 Bronco, E4OD, Man Xfer Case & Hubs
See my Big Bronco & F Series Technical & Parts LINKS site. Will need to clean up dead links & add many more new links some day. Thanks to Mr. Schwim! http://schwimserver5.com/?index=1128
Thanks to All Who Serve



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