Question about 1994 GMC Sierra

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When i put on my brakes the engine stutters and the break lights

When i put on my breaks the engine stutters and the break lights won't work. i chenged the break switch and the steering column. any ideas?

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Hi
Sounds like you have 2 problems here.?

The engine stuttering sounds more likely to be an air leak on your brake servo system, weakening the mixture, and this will give you a lumpy tick over.

As for the stop lights, No 1 check its not the fuse.
You need to confirm you are getting a live feed to the brake switch with a 12v test light.
If OK, bridge this connection and recheck your feeds at the stop light bulbs.

Good Luck

John.

Posted on Jan 18, 2009

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