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Hydroboost Variations

cornemuse

Active Member
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Location
San Diego county
I have for parts an '82 PU & an '83 Suburban, both 6.2 diesels. My driver is an '84 Blazer, 6.2 also.
Question: Are the hydroboost units interchangeable among these three vehicles??
Q 2: Do they go bad from "sitting on the south 40" for 15-20 years?

-corne-
 

schiker

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Pendleton, SC
Are there any brake codes in older trucks like the later years? There are a few different codes listed for later years depending on brake build. ie 6 lug vs 8 2500's I believe are different for the 90's.

Can you find the part numbers looking them up on rock auto or a GM parts website to see if they list the same part number?

I'd say they can go bad from sitting like anything with plastic and rubber especially with brake fluid being hygroscopic.
 

MrMarty51

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Miles City, Montana
I have for parts an '82 PU & an '83 Suburban, both 6.2 diesels. My driver is an '84 Blazer, 6.2 also.
Question: Are the hydroboost units interchangeable among these three vehicles??
Q 2: Do they go bad from "sitting on the south 40" for 15-20 years?

-corne-
Probably best to put a pressure gauge on the pump, if the engine can be started. If engine is a no start unit, might remove the pump, hook it to an electric motor via V belt and see whats it a doing. or just install the pump and hope for the best.
 
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