Question about 1994 Volkswagen Jetta

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1994 jetta III gl oil in the air intake hose

When I first start up when it is very could out idles very rough and alittle smoke, but after about 5 minutes or less it smoothes out and no smoke, I have oil in the air intake hose coming from the crankcase breather, replaced alot of parts pretty much everything but the engine which has 101000 miles on

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Sounds to me you blow by. Thats when either rings on the pistons are worn letting oil pass by or you have a scorned cylinder which also is letting oil get by. Should get a compression check done to make sure.

Posted on Mar 09, 2009

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My 94 Toyota Camry 4 cyl is running really rough and stalling out once the engine warms up


1. Error Code 24. Intake Air Temperature Sensor.
Solution:
Check the following:
- IAT Connector and wiring.
- Intake Air Temperature Sensor.
- Engine Coolant Temperature Sensor.
- ECM.
2. Rough Idling when the engine is hot.
The following are the reasons due to which the engine can perform bad when it is hot.
- Fuel pump control circuit.
- Fuel pump pressure.
- Fuel injectors.
- Non Return Valve clogged, located on the lower side of car chassis above the fuel tank.
- Engine compression, valve clearance, spark plugs.

Apr 14, 2014 | 1994 Toyota Camry

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Rought or shaky idle


If you have a rough or shaky idle, the problem could be the air intake is dirty. You will need to get to the butterly of the air intake and clean it out. There is a cleaner that is sold for about $5. Use a screwdriver to help keep open the butterfly. Spray the cleaner and use a dry cloth to clean the inside of the intake. This will help to clean up alot of the gunk in and around the intake. When you first start it up it still may have a rough idle for about 20 to 30 second but it will go away. There may be even a little smoke of the exhaust but will clear up. You will have a great idle again. Great day.

on Jan 29, 2010 | Chevrolet Silverado Cars & Trucks

2 Answers

My 1994 v6 nissan pickup idles rough and seems to skip some at idle when driving it runs fine I can't tell it it skips or not I have replaced sparkplugs sparkplug wires belts fuel filter and coil but it...


Check your exhaust manifold. A blown gasket or even a small crack in the manifold may cause this. Its also possible that your airflowmeter is faulty

Apr 07, 2014 | Cars & Trucks

2 Answers

2003 tdi, 54 k miles, bought car new, had manifold cleaned, new glow plugs and harness. car has been driven only short commutes for 3 years. Heavy blue smoke at startup, then it clears right up. No...


valve seals are going. when car sits excess oil gets past the valve seals then when you staRT up it burns the oil off then runs fine and no more blue smoke. It is fine to run like that had the same in a dodge caravan 1996 6cyl. ran another 100 000 km. and still ran fine got rid of it for other reasons.

Nov 20, 2009 | 2003 Volkswagen Jetta TDI

2 Answers

1994 Toyota pickup 22re 4cyl has intermitent low, rough idle. Sometimes idles normally. I have also noticed that when AC is on and compressor is engaged the engine idle is normal but when the compressor...


You might have a bad coil. Under a load the coil might preform well, but under no load, its weak causing a misfire...thus giving you a rough idle. I have had this problem on a few vehicle. Check plugs, wires, and distributor. Mike.

Sep 18, 2009 | 1994 Toyota Pickup

1 Answer

95 jetta III Skipping (lack of better term..)


ok today the same thing happened to my friends jetta same model and year it was a tiny hose coming from the valve cover on the right side that returns excess air back into the intake tube, it had split. so check all the hose, we had to go to a dealer to special order that part. any questions feel free to email me ericiribe@myhelio.com

Jul 07, 2009 | 1995 Volkswagen Jetta

1 Answer

I have a 1990 vw vanagon it will shut off when at idle, once it is warm it idles fine


Here is the common cause of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Jun 13, 2009 | 1990 Volkswagen agon GL

1 Answer

ROugh idle


there are 2 things that usually cause this, one is a dirty intake idle control valve and the other is hard engine mounts, I would say that both most likely apply to your car. try cleaning the intake with the following procedure from Ford.
Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Feb 18, 2009 | 1994 Ford Probe

1 Answer

94 Toyota 2.4 engine idles fast. when warms up it starts surging


sounds like an Idle air control valve or a positive crankcase ventalation valve(or pcv valve). use some intake cleaner in the air intake and take the pcv valve out and shake it it should rattle and move freely. mike

Jan 05, 2009 | 1994 Toyota Pickup

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