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My car vw jetta v5 2.3l starts and idle. do not rev higher than 2rpm, what could be the problem?

Had the valves and stem seals replaced and head gasket fitted as well car has a 10 valves AGZ ENGINE

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  • 122 Answers

Check competition. sound like they did not check valve height. or you have the valve to tight. valve are over lapping

Posted on Apr 19, 2013

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Posted on Jan 02, 2017

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SOURCE: 1993 TOYOTA TERCEL 1500cc Valve Seals Replaced now smokes much worse

You either have had the wrong valve seals installed, they are physically missing, or the valves are incorrect (too loose in the guides/stem too thin). The rocker arm seals will not contribute to your issue. If it did not have the oil smoke before you took the head off, the issue is with whatever the machine shop did. Valve seals have to fit TIGHT, or oil will go down the valve stem into the intake.
Take the head back to the machine shop & tell them to fix it. For free.

Posted on Sep 27, 2008

motor1258
  • 6674 Answers

SOURCE: replace valve stem oil seals

Make up an airline fitting that will screw into spark plug hole, or buy from autoparts , or tools supply place. You put compressed air in cylinder while changing, which holds valves in place.

Posted on Feb 21, 2009

  • 1071 Answers

SOURCE: After start, eng. shakes at idle. 2001 VW Jetta

if it has a 1.8 coils are bad but check mass air meter and throttle as well

Posted on Jul 21, 2009

  • 279 Answers

SOURCE: where can I find the idle control valve location

The idle is controlled by the the idle speed actuator which is part of the throttle body.

Posted on Feb 09, 2010

zyberwax
  • 1 Answer

SOURCE: 1996 VW Jetta with 2.0 engine. Dies when slowing from high RPM

I would check the EGR if your car has one it could be sticky, A Renault laguna we had did the same thing, died when letting it down to idle but would
recover, or when it died it would run fine on idle when restarted.
EGR was sticking on it. Vacuum lines could also be an issue.. EGR need vacum to work properly. Trotle body could also be worn, but normally that gives you an uneven idle.

Posted on Jul 23, 2012

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2 Answers

How do I change. Value guides in a 91 toyto. 1500. Engine. Smokes when I start idles fine no smoke after few mins till higher rpm and loss power 150 compression in 1 2 4. Cyl. 3. Has130 cpressipm


Why? You need a repair manual. Try filepeep.com if they have it, or manualslib.com or your Auto parts store, or library.
If you DIY you will need to remove the head. Then may need a hydraulic press at machine shop to press out the old and install a new.

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Engine smokes when I let up on accelerator


when you let up on the accelerator the vacuum in the manifold reaches 20 inches of vacuum or more. If the valve stem seals are worn/hard or cracked this high vacuum draws air and oil from the head down into the combustion chambers and this is blue smoke out the back It is the same as if you let the engine idle for several minutes and then rev it up and you get blue smoke out the back. It is also possible that if the rings are worn you may get the same affect. I would go for valve stem seals or worn valve guides.

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Why a 2001 daewood leganza car shokes when accelarating


If this occurs after being stopped at lights or the engine has been idling then it is because the valve stem seals are failing and the vacuum at idle is sucking the oil past the stem seals They can be replaced by a qualified skilled mechanic without removing the head

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Mercury mystique throws out a huge amount of smoke and the engine idles what can it be ?


Smoke from an idling engine that shows when the engine is reved up indicates worn valve stem seals and worn valve guides. If the engine has some age on it then the stem seals are probably hard and cracked allowing the oil to be drawn into the combustion chamber past the valve stem. A skilled mechanic with the right equipment can replace the seals without removing the head so ask around for some one who does it on a regular basis.

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Engines idle goes up and down after warming up and blows blue smoke


If the engine idles for a while then blows blue smoke this is an indication of oil passing the valve stem seals and being burnt in the combustion process. ( When you are at lights and they change and you accelerate away leacing a cloud of blue smoke this is worn valve guides and failed valve stem seals) As for the idle it could be the oxygen sensor is coated with oil and soot and is malfunctioning henace the cpu cannot regulate the fuel setting correctly. Have the valve seals replaced and clean the Oxygen sensor and check for other fault codes

Feb 17, 2013 | Cars & Trucks

1 Answer

Suspect valve stem seal caused smoking after being idle, replaced head gasket set and p'rings,t'belt, plugs, oil & air filter as there was no service history at 66,000 miles. fired up fine...


If it only smokes after you crank it up and then stops after it warms up usually that is the valve seals letting oil leak down in the cylinder after you cut it off .

Jul 03, 2011 | Daihatsu Charade Cars & Trucks

1 Answer

My 1985 corvette smokes out the exaust only when at idle and engine at running temperature.


most likely worn valve guides and probably dry cracked and fallen off valve stem seals you may get lucky with just replacing valve stem seals but may need guides installed in heads

Aug 07, 2010 | 1985 Chevrolet Corvette

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Hi my ford granada 2.8 carb 1984 started idleing rought and kicking blue smoke out just bought new head gasket set but the valve stem seals are tight and is that a problem danny


Blue smoke = oil is burned. You have an oil seal that is worn out so yes, the valve stem seals might be the ones. Replace them and check again.

Aug 04, 2010 | Ford Granada Cars & Trucks

2 Answers

1996 VW Jetta with 2.0 engine. Dies when slowing from high RPM


Check your vacuum lines, make sure there is no leaks, and go from there, then all you electrical connection in the engine compartment.
I have a 1996 Jetta Trek Edition, the hoses, and wire harness, are so brittle, any movement can cause hoses and wire insulation to crack.

Apr 27, 2009 | 1996 Volkswagen Jetta

1 Answer

Blowing black smoke on acceleration 2.5 exceed turbo intercooler I have a Mitsubishi 2.5 diesel with what sounds to be a similar problem except it happens when you rev the engine suddenly but stops...


1 Inspect Piston Ring Set Worn or broken piston rings. grey_line.gif 2 Inspect Valve Stem Seal Cracked or brittle valve stem seals allowing oil to enter combustion chamber. grey_line.gif 3 Inspect Head Gasket - Performance Head gasket leaking coolant into cylinders grey_line.gif 4 Inspect Fuel Injector Rich injector grey_line.gif 5 Inspect PCV Valve Plugged or damaged pcv valve. grey_line.gif 6 Inspect Engine Worn or scored cylinder block grey_line.gif 7 Inspect Piston Worn or damaged piston. grey_line.gif 8 Inspect Valve Guide Worn valve guides

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