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How to replace PCV valve on 1999 S10 blazer - Blazer Chevrolet Cars & Trucks

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If the engine in question is the 4.3l Vortec motor, the pcv valve is located on the driver's side valve cover, near the center. If it is the 2.2l motor, it is also located on the main valve cover, near the front of the cylinder head.

Posted on Mar 12, 2011

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My 1999 Chevrolet Blazer is shalling


Check the vacuum elbow going from the PCV valve pipe to where it connects into the intake. I've had to replace two on mine.

Aug 30, 2012 | 1999 Chevrolet Blazer

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1993 CHEVROLET S10 BLAZER-WHEN DRIVING IDLE IS AT NORMAL SPEED. BUT, WHEN YOU COME TO STOP, IDLE IS HIGH. WHAT IS MY PROBLEM?


My 93 s10 blazer idles really ruff and i
erratically for the first few minutes until it warms up. It now sound like its going to stall every morning I start it up and black soot comes out the tail pipe onto the pavement but only while its idling rough. After i changed the cap and rotor it idled good for a couple days then started doing it again.Already changed the fuel filter and pcv valve. whats the problem?

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I GET CODE PO753 SHIFT SENSOR A ON A 1999 S10 TRUCK 2.2 AUTO which one is it on the valve body


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(367a) 1-2 Shift Solenoid (SS) Valve

(367a) 1-2 Shift Solenoid (SS) Valveb550a47.gif

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1 Answer

I have a 1985 s10 blazer .. i drained the oil and replaced the plug, and replaced the oil filter .. however, i am unable to remove the oil fill cap. it does not pull out nor unscrew .. it does hand...


If you have any other fittings on the valve cover (pcv valve, breather tube etc) you can put a hose into the valve cover through that hole and fill it. (slowly...most have baffles inside). I have seen engines filled through the dipstick tube also (takes forever though).
Once you get oil in there, bring it to a shop and have someone show you how to get the fill cap off so it is easier next time.

Feb 23, 2010 | 1985 Chevrolet S-10 Blazer

1 Answer

Pcv location on 2002 s10


it is a tube connected to the valve cover. So there really isn't a valve.

May 15, 2009 | 2002 Chevrolet S-10

2 Answers

THE TRUCK IS HARD TO START SOMETIMES


Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator.

Inspect Fuel Injector Cold Start Valve Damaged or Faulty Cold Start Valve.

Inspect PCV Valve Plugged or Damaged PCV Valve.

Inspect Spark Plugs Fouled Spark Plugs.

Inspect Relay - Fuel Pumpat Faulty Fuel Pump Relay.

Inspect Hose (PCV)at Clogged or Collapsed PCV Hoses.

Inspect EGR Valve Improperly Functioning or Faulty EGR Valve.

Inspect Valve Burned, Worn, or Sticking Exhaust Valves.

Inspect Wireset Worn or Damaged Spark Plug Wires.


Hi, i have listed a cluster of problem spots that you will need to inspect for damage. You will find that your hard starting issue will be the cause of damage in one or more of the above problem areas listed above. Please check each area thoroughly for ware and tare and possible damaged components as well. replace any damaged or worn device listed above.

Please rate and god bless:)

May 04, 2009 | 2003 Chevrolet Blazer

1 Answer

1999 Chevy S10 Blazer 4x4. Replacing rear pad's,& Bleeding Breaks


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1 Answer

Where is the pcv valve on the 2005 chevy trail blazer


It is located on top of the valve cover. Buy the new one and you will see what it looks like, then you will pull the hose off of it and put the new one on, 5-minutes at top to do this job.

Feb 08, 2009 | 2000 Chevrolet Blazer

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