1990 Suburban brakes

**Knucklehead** · 04-29-2009, 09:43 PM

My Suburban has recently started pulling to the left during braking, well the steering wheel turns , not so much the truck. So my first step was to change the calipers, and the problem is still there. The tires pressure is correct , theres plenty of fuild pumping through the brake lines and the master cylinder seems to be working correctly. Also i noticed it seems like brake dust collects faster than i remember. I dont know if they are related problems , but any suggestions would be helpful!

**ct9a** · 04-29-2009, 09:47 PM

Make sure that the floating pins are properly lubed and/or not frozen.

**corova** · 05-11-2009, 02:01 PM

check your speed sensors

**tbplus10** · 05-11-2009, 06:14 PM

Check the front brake lines to make sure they arent expanding under pressure, this happens a lot on lifted trucks.

**CarpenterGuy** · 05-11-2009, 10:10 PM

did you change the rotors with the calipers?

**Knucklehead** · 05-18-2009, 04:00 PM

Originally Posted by CarpenterGuy

did you change the rotors with the calipers?

Sorry it took so long to get back , yes about a week after i posted and its still the same story , im thinking the brake lines, although there is no visual defects i understand that they can deteriorate from the inside first.

**mespe** · 04-30-2011, 08:33 AM

Well, can you tell us what you found to be the problem?

**vncj96** · 04-30-2011, 10:06 AM

Just get full steel braided brake lines, better in heavy braking and no expansion of the lines either, they are woth the extra $$. Also even an alignment/tire balance can cure brake pull

**mespe** · 05-02-2011, 11:14 AM

Turns out my left front rubber brake line was expanding, causing the RF brake to pull the truck to the right. What a PITA conencting the LF steel brake line to the proportioning valve,,, should have taken 15 minutes to replace the lines, took me 2 hours and alot of frustration. but the truck brakes straight now. So it's on to the next step WVO conversion.