[DeTomaso] Vacuum Leak

[Thomas Tornblom]

Trevor Fougere skrev:
> I braked hard the other day to avoid trimming someone's toenails.
> 
>  
> 
> Immediately after that I experienced both a high idle and a hard brake pedal
> with no power braking assist.  I disconnected the vacuum hose at the rear of
> the carb, covered the nipple with a vacuum cap, and the high idle problem
> immediately disappeared.  Leaving the hard brake pedal / no power brake
> assist. At this point I am assuming I have a leak somewhere in the line
> running to the Master Brake Cylinder and that it's a leak and not the MBC
> that has failed.

Connect the hose to the carb again and disconnect it at the brake 
booster and cover that up. If the idle is still fine, then your line is 
good and your booster is broken (my guess). If the idle is high, then 
you have a leak somewhere between the carb and the booster.

Thomas

> 
>  
> 
> I am curious what steps I should take next to track this down and identify
> exactly what needs to be repaired.  Your input is always essential to this
> arm chair mechanic.
> 
>  
> 
> Thanks in advance.
> 
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Real life:   Thomas To"rnblom             Email:  Thomas.Tornblom at Hax.SE
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