GMC K3500 Vent Oil Separator Replacement at your home or office.

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Vent Oil Separator Replacement Service

How much does a Vent Oil Separator Replacement cost?

On average, the cost for a GMC K3500 Vent Oil Separator Replacement is $216 with $7 for parts and $209 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1986 GMC K3500V8-7.4LService typeVent Oil Separator ReplacementEstimate$266.12Shop/Dealer Price$291.41 - $317.76
1989 GMC K3500V8-5.7LService typeVent Oil Separator ReplacementEstimate$438.98Shop/Dealer Price$518.52 - $707.55
1995 GMC K3500V8-5.7LService typeVent Oil Separator ReplacementEstimate$446.90Shop/Dealer Price$528.42 - $723.39
1995 GMC K3500V8-6.5L Turbo DieselService typeVent Oil Separator ReplacementEstimate$446.90Shop/Dealer Price$528.37 - $723.30
1997 GMC K3500V8-5.7LService typeVent Oil Separator ReplacementEstimate$446.90Shop/Dealer Price$528.45 - $723.45
1982 GMC K3500V8-5.7LService typeVent Oil Separator ReplacementEstimate$222.12Shop/Dealer Price$247.44 - $273.83
1998 GMC K3500V8-5.7LService typeVent Oil Separator ReplacementEstimate$457.90Shop/Dealer Price$539.12 - $733.86
1980 GMC K3500V8-7.4LService typeVent Oil Separator ReplacementEstimate$233.12Shop/Dealer Price$258.96 - $285.74
Show example GMC K3500 Vent Oil Separator Replacement prices

What is the Vent Oil Seperator all about?

An internal combustion engine runs on a series of controlled explosions. During this process, gases are created. While most of those gases will eventually make their way from the combustion chamber through the exhaust manifold and out the muffler, some pass the pistons into the crankcase. The latter is called “blow-by”, and it can be very damaging to an engine. It creates additional pressure within the crankcase that damages seals and gaskets. To combat this deleterious effect, a ventilation system is used.

These systems require several different components in order to operate, including the positive crankcase ventilation (PCV) valve and the vent oil separator hose. The vent oil separator hose is responsible for capturing and collecting oil droplets that invariably accompany those spent gases and ensuring they are not released into the combustion chamber. The gases are then re-burned for emissions control. If your vent oil separator is plugged, excess pressure can build up inside the crankcase and blow out a seal, causing an oil leak. Excess oil in the vent oil separator can also enter the combustion chamber, causing a misfire and rough run with blue, oily exhaust.

Keep in mind:

  • The vent oil separator hose is susceptible to clogging, particularly during cold weather.
  • The vent oil separator hose is part of the crankcase ventilation system. If you’re experiencing related problems, have the entire system diagnosed.

How it's done:

  • The faulty vent oil separator is located and identified
  • The intake is removed and the vent oil separator is removed
  • The new vent oil separator is installed and the intake is installed
  • The engine is started and idled, then the new vent oil separator is checked for leaks
  • The vehicle is road tested and checked for proper operation

Our recommendation:

The vent oil separator doesn’t have a set maintenance schedule. If you are having symptoms related to the vent oil separator, have one of our expert mechanics diagnose the crankcase ventilation system on your vehicle and repair it as necessary.

What common symptoms indicate you may need to replace the Vent Oil Seperator?

  • Oil is present in the PCV valve
  • Blue smoke from the exhaust
  • Engine runs rough with a check engine light on

How important is this service?

The crankcase ventilation system is a vital part of your emissions control system and can adversely affect engine operation if it is not maintained properly.

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Alex

20 years of experience
141 reviews
Alex
20 years of experience
GMC K3500 V8-7.4L - Starter - Glen Ellyn, Illinois
Extremely professional and well versed in auto mechanics. Explained things simply and was able answer my questions clearly

Theodore

16 years of experience
1638 reviews
Theodore
16 years of experience
GMC K3500 L6-4.8L - Battery - Bellevue, Washington
Hes awesome, super helpful every time!

Francisco

10 years of experience
174 reviews
Francisco
10 years of experience
GMC K3500 V8-6.5L Turbo Diesel - Battery - Portland, Oregon
Francisco was great. Not a super complicated service this time, but he was very thorough and helpful. Thanks

Allen

30 years of experience
49 reviews
Allen
30 years of experience
GMC Sierra 1500 V8-5.3L - Fuel Pressure Regulator - Las Vegas, Nevada
Allen is very courteous and ethical. There were no high pressure tactics and he was able to fix the actual issue versus what I thought the problem was.

Excellent Rating

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Rating Summary
2,853
79
21
10
50
2,853
79
21
10
50
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