Boost Issue

**Nates3stt** · 08-24-2012, 08:16 PM

when i hit my factory peek boost level the car makes a high pitch sqeel and or beeping sound almost its hard to exsplain.

I think its boost loss but from were is the issue im having any suggestions would be nice i dont know were to start looking?

because the car runs fine otherwise mind you 130,000miles 1991 bone stock

**stealthee** · 08-24-2012, 09:32 PM

Probably the stock BOV.

**DocWalt** · 08-25-2012, 01:56 AM

Could also be a bad check valve on the clutch booster or the brake booster. Need more info on where the noise is coming from like Stealthee said.

**Nates3stt** · 08-25-2012, 06:21 AM

The OEM BOV is what i was thinking to but it only does it at the peak of boost clime does the oem bov have intermitent issues like that

It sounds like its comming from the drivers side thats why thought it was weird

**Boomer3000** · 08-25-2012, 08:37 AM

Best way to tell if it's a boost leak is to pressure test the system. That will tell you if your bov is f'd or if you have any other leaks. The clutch booster/brake booster is also another good possibility Like Doc said. But test the system and see what you get. Also videos always help.