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Re: Under dash hissing noise
If there is plenty of room- it is a cake walk....master cylinder just unbolts from front- no need to unhook brake lines- and there are four bolts under dash and of course, brake pedal linkage- I've done 5 or 6 but never on an HHR- can be a pricey part- $120 or so- and they want a core...all depends on how much room there is to work it out.....
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Automotive A/C Engineer with:
'99 IH 4700 Toy Hauler
(2) '95 GEO Prizms both maroon
'99 GMC Yukon
'95 Chev 3500, 454 Dually Crew Cab- 145k miles-
Wife's Camel trailer puller.
'94 Astro- 370k miles
'94 Firebird Formula- 5.7L 180k miles- gone-
'92 Chevy Lumina Van 3.8L 264k
'86 GMC S-15 - 2.8L 154k
'87 Buick Park Ave . 187k
'86 Buick Park Ave 3.8L 199k miles- gone
'77 Chevy Vega- 2.5L 175k miles gone but not forgotten
'68 Camaro 396 4 spd RS/SS -72k miles-
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