Auto Question

[SpinnerBait_Nut]

OK, here's the problem.<br /><br />On my Motorhome which is on a P-30 Chevy chassis, I have replaced the front 2 brake calipers and pads. New brake fluid also.<br /><br />The problem is that the passenger side caliper is wanting to stick.<br />Takes a long time before it will release all the way.<br /><br />Have I got a bad brake line to that side?<br />That is the only thing I have not replaced.<br />Thanks.

 

[TexSkeeter150]

Re: Auto Question

Have you bleed the breaks at all 4 corners? Sounds like there could be some air in the lines.

 

[SpinnerBait_Nut]

Re: Auto Question

Thanks TS, and yes I did.<br />I was just thinking that maybe that brake line is trying to colaspe on me.

 

[clanton]

Re: Auto Question

Brake hose a good choice, I would replace both sides, after I was sure the slider pins were free.

 

[aspeck]

Re: Auto Question

Probably problem is in the break line, but could still be in the caliper or in the mastercylinder. Why did you replace the calipers in the first place?

 

[SpinnerBait_Nut]

Re: Auto Question

aspeck, the passenger side was sticking.

 

[Skinnywater]

Re: Auto Question

Take the flex hose (flexible brake line)off of it and try to blow through it. If it's bad, replace both front or better yet all 4.

 

[BassMan283]

Re: Auto Question

It's a bad caliper. I had the same thing happen with a Dodge Van some years ago because the previous owner put new pads on but didn't rebuild the calipers. Replacing or rebuilding the caliper should solve the problem.<br />{edit} Sorry. What's happening is that the caliper pistons are sticking.

 

[ob]

Re: Auto Question

SBN,After applying the brakes and getting it to stick,try loosening the brake line on that caliper and see if it releases.Then you'll have your answer.Brake line or caliper itself.

 

[bubbakat]

Re: Auto Question

good advice ob

 

[SpinnerBait_Nut]

Re: Auto Question

Well I guess it could be a bad caliper.<br />Just seems odd, the new one is doing the same thing as the old one was.<br /><br />I did replace both front calipers with new ones.<br /><br />I'm thinking I messed up by not replacing the lines also.<br />May have been the trouble all along.<br /><br />Thanks guys.

 

[Skinnywater]

Re: Auto Question

Flex hoses collapse internally. I had to replace one last Thursday on a customers car. Same problem, you won't be able to blow through the bad one.

 

[paulgp6022]

Re: Auto Question

It probably is your proportioning valve. This valve evenly distributes brake fluid to each wheel in front so the braking is even and the vehicle doesn't pull to either side when you depress the brake pedal.

 

[bubbakat]

Re: Auto Question

sbn replace the flex hose<br />

 

[BassMan283]

Re: Auto Question

Sorry. I didn't read carefully and didn't notice that you'd already replaced the calipers.<br /><br />Anyway, all of the advice given has the potential of being correct. What's happening is that whatever reason, when you apply the brakes, something is keeping the caliper from being pushed away from the rotor.<br /><br />You probably already know this, but rotors have a wide spot which is supposed to push the caliper away form the rotor when the brake is released. the main reasons for sticking would be sticking piston or fluid not returning from the wheel cylinder.

 

[Skinnywater]

Re: Auto Question

Hmmmm, ya learn something new every day.

 

[ooootis]

Re: Auto Question

go with the break hoses like most have said and yes replace both

 

[marv plotzka]

Re: Auto Question

What model year is your P30 chassis?

 

[NOSLEEP]

Re: Auto Question

Yes, It is not uncommon for the flex hoses to<br />collapse and cause the problem you are describing.

 

[marv plotzka]

Re: Auto Question

This is from 1998 P30 shop manual and applies to Delco brakes not Bendix (Bendix uses a slide key to attach caliper to knuckel) <br />"<br />Important<br />If you encounter disc brakes that are extremely worn on the inboard side, with very little wear to the outboard side, verify the clearance between the caliper and the steering knuckle bracket stops.<br /><br />MEASURE THE CLEARANCES INDIVIDUALLY AND ADD THE CLEARANCES TOGETHER FOR TOTAL CLEARANCE BEFORE REMOVING THE CALIPER. If the caliper (total clearance) to the steering knuckle stops is under 0.26 mm (0.010 in), correct this by filing metal off at the steering knuckle stops in order to obtain a total clearance of 0.26 to 0.60 mm (0.010 to 0.024 in). DO NOT FILE METAL OFF OF THE CALIPER. Refer to the Disc Brake subsection of the appropriate Service Manual for additional information on this procedure.<br />"