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05-06-2015, 07:30 AM
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#1 |
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Registered User
Join Date: May 2010
Location: Rochester NY
Posts: 831
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Hydroboost questions- pedal slowly drops at a red light
1986 k30
I have new pads, new shoes, new calipers, new hoses. No visible leaks. Problem- stops good but when I sit at a red light the pedal slowly starts to drop to the floor. Slow leak down. I take my foot off and then it holds and then slowly drop to the floor again. Anyone have an idea? Vacuum? Thanks
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1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed |
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05-06-2015, 09:17 AM
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#2 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,540
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Re: Hydroboost questions- pedal slowly drops at a red light
M/C has an internal leak.
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05-06-2015, 10:22 AM
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#3 | |
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Registered User
 Join Date: Mar 2015
Location: NOLA
Posts: 88
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Re: Hydroboost questions- pedal slowly drops at a red light
Quote:
if there are no puddles under the truck, this has been my experience as well.
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76 c30 3+3 Camper Special - 12V 5.9l 6BT Cummins and 47RE |
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05-06-2015, 10:36 AM
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#4 |
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Registered User
Join Date: May 2010
Location: Rochester NY
Posts: 831
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Re: Hydroboost questions- pedal slowly drops at a red light
Its supposedly a new master that the PO installed before I purchased the truck.
I've also had the MC spitting fluid since I've had the truck. The two issues related then? Poor bench bleeding?
__________________
1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed |
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05-06-2015, 11:40 AM
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#5 |
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Registered User
Join Date: May 2010
Location: Rochester NY
Posts: 831
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Re: Hydroboost questions- pedal slowly drops at a red light
and where are the stamped #'s for the M/C 1605 or 1925? I cant find any on mine. Thanks for the help
__________________
1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed |
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05-06-2015, 12:41 PM
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#6 |
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Registered User
Join Date: Apr 2012
Location: Chatt Tn
Posts: 965
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Re: Hydroboost questions- pedal slowly drops at a red light
the hydroboost can also leak internally.
__________________
88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535 |
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05-07-2015, 10:47 AM
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#7 | |
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Registered User
Join Date: May 2010
Location: Rochester NY
Posts: 831
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Re: Hydroboost questions- pedal slowly drops at a red light
Quote:
__________________
1973 k20 Suburban 350 1974 Custom stepside c-10 250 1975 Chevy stepside 454 1986 K30 Crewcab SRW 350 R.I.P- glimmertwin01- board member and good friend, you will be missed |
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