What is this part
#1
What is this part
I was unable to take a picture tonight but I will describe it as best as possible. I was under the hood tonight filling the wiper fluid when I heard a vacuum leak. I followed the noise and found a vacuum line that was broken off of a black plastic ball located near the corner where the firewall and driver side fender meet. I have never seen this type of part before and was wondering if anyone could tell me what it is called and possibly what it does. Thanks
#3
That sounds pretty likely. It does only have 1 line going into it. Not sure how long it has been broke but the previous owner has about 3 ft of extra wiring and stuff in that area from what I think was a security system so it may have been broken sense the installation or removal of some of those components
#4
If the ball is aboit 5 or 6 inches in diameter it's definately the vacuum tank. It stores vacuum for when you don't have high vacuum in your engine. Everything from cruise control to heat/air conditioning actuators taps into this. If you have a broken one, you should replace it. Your engine will run better-promise.
#5
I think it is definitely the vacuum reservoir after hearing what you guys have said and looking at pics online. However I have no problems with anything. HVAC, Cruise, 4x4, etc all work perfectly fine. I will still replace it tho if I can find one. I have not been able to find one listed at any of the auto parts places or even on oem part sites.
#6
Vacuum Reservoir
www.rockauto.com
DORMAN Part # 47077 $9.37 Round Vacuum Reservoir
1984 CHEVROLET BLAZER 5.7L 350cid V8 4BBL (L) : Emission : Vacuum Reservoir
I don't know what year your Blazer is, but this one would probably work. I have a 96 Blazer, but there is no listing for the reservoir under the 96 Blazer parts list.
Maybe someone else will chime in with another source.
Another possibility:
ACDELCO Part # 14078506 $32.79 Round Vacuum Reservoir
1990 CHEVROLET S10 BLAZER 4.3L 262cid V6 TBI (Z) : Emission : Vacuum Rese
There is also one available at www.gmpartsdirect.com for $ 25.06. Search 14078506 on the first screen. It does not show up for 96 blazer either.
DORMAN Part # 47077 $9.37 Round Vacuum Reservoir
1984 CHEVROLET BLAZER 5.7L 350cid V8 4BBL (L) : Emission : Vacuum Reservoir
I don't know what year your Blazer is, but this one would probably work. I have a 96 Blazer, but there is no listing for the reservoir under the 96 Blazer parts list.
Maybe someone else will chime in with another source.
Another possibility:
ACDELCO Part # 14078506 $32.79 Round Vacuum Reservoir
1990 CHEVROLET S10 BLAZER 4.3L 262cid V6 TBI (Z) : Emission : Vacuum Rese
There is also one available at www.gmpartsdirect.com for $ 25.06. Search 14078506 on the first screen. It does not show up for 96 blazer either.
Last edited by moggy59; 01-05-2010 at 05:39 PM.
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2nd Generation S-series (1995-2005) Tech
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11-17-2011 06:27 PM