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Mechanic says exhaust is fine, but I'm getting fumes...Could a bad PCV, cause blow by?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 975 Answers

SOURCE: where is the PCV on a 2002 Chevy Impala?

doubtful,try spraying the wires and plugs with some windex with the car idling,listen and watch for spark jumping. Plug wires are often the cause.

Posted on Jan 01, 2009

haileyscrazy
  • 18 Answers

SOURCE: where is the PCV valve on a 2002 Chevy Impala?

Tech jk is right
I HAD THE SAME PROBLEM IT'S THE FUEL PRESSURE REGULATOR REPLACE IT AND YOUR PROBLEM WIILL GO AWAY

Posted on Jan 13, 2009

TDISLine
  • 1874 Answers

SOURCE: exhaust fumes are really bad have to ride with

EGR system clogged, MAF sensor fault, and / or turbocharger out of order.

Posted on Dec 10, 2009

coskuarsiray
  • 208 Answers

SOURCE: I HAVE A 2003 SORENTO,MY MECHANIC DIAGNOSED IT AS A MISSFIRE ON # 1 CYLINDER,REPLACED PLUGS AND WIRES,THEN DIAGNOSED THAT IT HAD A BAD O2 CENSER,REPLACED THAT AND STILL RUNS ROUGH.CAR ALSO BLOWS A LO

if loosing coolant but no leaks anywhere inside or outside of car, and if it overheats due to lost coolant, we can say that your cylinder head has a micro crack on it. and coolant is vaporized inside chamber. you need to weld (or replace) cylinder head after removing it.

Posted on Nov 24, 2011

  • 2 Answers

SOURCE: exhaust fumes !!!

Hi,

I've had this problem on a 924 and a 944. The problem will be the seal around the rear tail light, on the exhaust tail pipe side. Another source of the problem could be rear hatch seal or rear hatch adjustment.

If you smell fuel too (with a full tank), replace the hose and the two rubber sleeves between the fill point and the fuel tank. These are under the carpet in the rear of the car.

Cheers,

Ken.

Posted on Jun 01, 2012

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I HAVE A 2003 SORENTO,MY MECHANIC DIAGNOSED IT AS A MISSFIRE ON # 1 CYLINDER,REPLACED PLUGS AND WIRES,THEN DIAGNOSED THAT IT HAD A BAD O2 CENSER,REPLACED THAT AND STILL RUNS ROUGH.CAR ALSO BLOWS A LOT OF...


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Its sputtering and blowing smoke out of the tailpipe. whats the problem?


Hello! #1 question; Is the Check Engine Light (CEL) on? This means the computer has stored a fault and in order to troubleshoot the cause I'll need the code...Take the vehicle to an auto parts store and, for free, they will read the code...Send it to me...

If the CEL is not on; Pull the Positive Crankcase Ventilation (PCV) valve...Give it a shake...If you do not hear the little ball that lives inside rattling around; you have found the fault...Replace PCV valve...
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This issue is caused by crankcase pressure issue.
Normally filtered air enters the engine, runs through the crank case and then is pulled into the intake through the PCV valve. Durning hard acceleration, the PCV valve closes (to prevent explosion of fumes in crank case and blowing valve covers and pan off) and the PCV system reverses, with fumes coming back through the filtered intake.

Usually there is minimal oil that gets back into the air cleaner.

So, when somthing goes wrong, like excessive blow by, for example, the crankcase pressure overcomes the PCV valve and intake of fumes capability, and oily starts showing up in the air filter.

Investigate the crankcase pressure and PCV system.

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What are the symtoms of a bad catalytic converter on a 2003 kia rio


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Sounds funny


It is possible that your PCV Valve is not functioning as well as it should,,,also,,it may be that your engine has excessive wear in the piston rings and lower oil rings,,causing excessive blow by into your engine crank case.
This will of course affect how your engine runs and how much oil is consumed.
Check PCV valve and replace as neccessary.
If this doesnt work,,i'd suggest taking it to a mechanic.

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