on the back behind the wheel hub should be a gear looking thing that moves turn it slowly until fully ajusted
if your van has rear drum brakes, adjust them up until there is a slight drag on the brakes. this usually does the trick to tighten up the parking brake.
you sit on them
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If the parking brake does not engage fully, the rear (shoe type) brakes need to be adjusted or replaced.
my 92 is dics
The majority of time if you adjust the rear brakes it will adjust the park brake.
adjusting Isuzu rodeo brakes
i set the parking brake on my 2002 f-350 and it does not hold. I havent found where to adjust it on the truck. Can I adjust it or do I need to take it to a repair shop?
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You have to adjust the rear brakes, after you adjust the rear brakes the slack will almost be gone and you'll find the brake lever will grab almost at once. The cable going to the brake lever can be adjusted with a 10mm socket, but adjust your rear brakes first, the remaining slack then will be taken out by tightening the cable.This adjustment is located under the rubber cover, covering the bottom of the brake lever.
frist make syre your rear brakes are ajusted properly then try your parking brake
adjust the shoes