At forty mph the front end starts to shake

2005 CHEVROLET EQUINOX
170,000 MILES • 3.4L • 6 CYL • 2WD • AUTOMATIC
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BRIAN TULLY
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Randomly when driving around forty mph the front end starts to shake and car acts like it is hesitating. You can sometimes accelerate out of it and it does not come back. Occasionally the traction control and ABS lights will come on but not always. Replaced brake lines and calipers and new master cylinder recently due to front passenger side caliper locking up. Also new plugs and wires in the last month.
Sep 5, 2018 at 9:35 AM
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STRAILER
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Hello Brian,

It sounds like the ABS is having an issue like one of the wheel speed sensors is going out. Here is a video that shows how to get the ABS codes for the system so you can see which sensor it is. Sometimes the wheel hub can go out causing the wheel sensor not to work correctly as well.

https://youtu.be/rTtAnsOlZU4

if you do not have a scanner this guide can show you how to test the senors using a volt meter.

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

Please run down these guides and report back.

Cheers, Ken
Sep 6, 2018 at 11:16 AM
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BRIAN TULLY
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I replaced the brake line and pads as it appeared to have a blockage that was causing the caliper to stay engaged. It appears this has been the solution as ithe problem has stopped upon this replacement.
Sep 9, 2018 at 10:36 AM
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STRAILER
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Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.

Cheers, Ken
Sep 9, 2018 at 12:32 PM