Fluctuating RPMs, possible clogged catalytic converter
LARRY SUMBRYEL
MEMBER
2004 CHEVROLET SUBURBAN
5.3L
V8
4WD
AUTOMATIC
273 MILES
I changed my calibers, but the brake was burning. My rpm jump up and down seems that the catalytic converter is stopped up.
Monday, January 25th, 2021 AT 4:21 PM
4 Replies
JACOBANDNICKOLAS
MECHANIC
109,885 POSTS
Hi,
Is the issue with the brakes burning or an engine-related issue? If you replaced the caliper and the brakes are stuck, I need you to try something. When it is stuck, open the bleeder on the brake caliper and see if it releases.
Do that and let me know what happens.
Take care,
Joe
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Monday, January 25th, 2021 AT 8:11 PM
LARRY SUMBRYEL
MEMBER
3 POSTS
The wheel sensor is bad.
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Monday, January 25th, 2021 AT 9:06 PM
LARRY SUMBRYEL
MEMBER
3 POSTS
The brakes are no good.
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Monday, January 25th, 2021 AT 9:07 PM
JACOBANDNICKOLAS
MECHANIC
109,885 POSTS
Do you know what caused the pads to stick and burn up? With new calipers, you shouldn't have an issue with the brakes. As far as a wheel speed sensor, here is a link that explains how to replace one. If you know which one is bad, let me know and I can give you more specific information.