20 Most Recent 2004 Volkswagen Passat - Page 5 Questions & Answers

Most likely your heater core is plugged. To check, get engine to operating temp and see if both heater core hoses are the same temp. Or you can remove the outlet heater hose and see if you have flow through the heater core.

2004 Volkswagen... | Answered on Feb 12, 2014

You need to take it someone with an electronic diagnostic tester to see what the sensors are saying while it runs.

2004 Volkswagen... | Answered on Dec 21, 2013

take it back to shop because.some of the 2.8 v6 passat had 2 cam sensors.one for right bank and one for left bank.if shop already replace them.they need to remove code from computer.

2004 Volkswagen... | Answered on Dec 18, 2013

with the car running pull the blend door actuator it is located just to the right of your blower motor under the dash on the passenger side, it will be secured bu three screws, take it out and you will see a small dowel, with the fan on turn it by hand you will get heat, after you have gotten that done so you can at least be comfortable turn the temp knob fully one way or the other and look for your actuator to turn, if it doesn't check the voltage going to it if it has voltage then your actuator is bad if you don't have voltage then your switch in the dash is bad, I hope this helps

I’m happy to assist further over the phone at https://www.6ya.com/expert/brock_d67526d2a834c47e

2004 Volkswagen... | Answered on Dec 11, 2013

Symptoms- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- The engine may stumble or stallPossible causes- Ignition/Distributor engine speed sensor harness circuit is open or shorted
- Ignition/Distributor engine speed sensor poor electrical connection
- Faulty Ignition/Distributor engine speed sensor
- Faulty Crankshaft Position sensor
- Low battery charge
- Faulty Engine Control Module (ECM)When is the code detected?The P0322 code is triggered when the Engine Control Module (ECM) detects no signal.P0322 VOLKSWAGEN DescriptionIgnition failure sensor is used to check whether the spark ignition is occurred correctly or not and also used to tachometer drive. The sensor monitors the voltage difference between a resistance which is on the battery circuit for ignition coil. When the ignition coil works properly, the electric current through the resistance is detected as voltage drop. This is confirmed for every ignition event with the crankshaft sensor and the camshaft sensor. If ECM detects a malfunction, no ignition is possible, so the engine would not start. If there is no ignition signal for a predetermined cycle for one or two ignition coils, an ignition coil circuit failure exists.

2004 Volkswagen... | Answered on Dec 09, 2013

Simple questions first...bulbs are good? Canadian or us car? There are fuses on the top of the battery. Relay 173.... If you have daytime running lights, and they work, the bulbs are fine since they are same as low beams. These cars have a bit of history of doing this.

2004 Volkswagen... | Answered on Nov 15, 2013

as far as i remember these vehicles had problems with the timing change stretching. depending on the miles you may be able to have vw do this replacement for free

2004 Volkswagen... | Answered on Nov 11, 2013

I asked my VW friend. He said that bulb was only intended to keep the headlight area slightly lit up in the event the main light burnt out.
Some sort of safety feature.
He also said DRL's were not an option on his 2009 rabbit

2004 Volkswagen... | Answered on Nov 06, 2013

my passat EPC light appear suddenly , please to help , what that mean ?

2004 Volkswagen... | Answered on Nov 01, 2013

hello : my proplem is began after i drive my passat 5 kilometer the EPC yellow light is appear and i dont know what that mean . thanks foer your help .. my passat 2003 model petrol . 2000 cc .
Rami Safran

2004 Volkswagen... | Answered on Nov 01, 2013

Here try this solution...You posted P1479. ...When this fault is stored in conjunction with misfire and system lean fault codes check the PCV system and any other possible sources of engine mechanical vacuum leaks. Although PCV failure is most common on the 1.8T engines equipped with the auxiliary vacuum pump, any engine with low vacuum can cause that electric pump to run excessively - resulting in this fault code. Good luck.

2004 Volkswagen... | Answered on Oct 28, 2013

Blue smoke is oil. If you haven't , it's time to start paying close attention to your oil level. It could be a result of wear from high mileage or it could be an internal problem, stuck or leaky valves or a bad piston ring. If it happened suddenly, it's likely mechanical, if it happened gradually it's likely mileage.

2004 Volkswagen... | Answered on Oct 18, 2013

Do you have a trunk ajar warning? Not sure what you are asking exactly, a little more info please.

2004 Volkswagen... | Answered on Oct 15, 2013

You might need to replace your headlight assembly. I would look online for a used one, it's much cheaper.

2004 Volkswagen... | Answered on Sep 17, 2013


Towards the bottom of the discussion of this thread is the location of the pressure switch, I hope this helps you.

2004 Volkswagen... | Answered on Sep 08, 2013

This could be any number of things, however from experience I would check ignition system and braking system for shorting out issues, it could also be a raw wire touching so do a diagnostic.

2004 Volkswagen... | Answered on Aug 16, 2013

The Gas may indeed be getting to the engine but Gasoline loses it's volatility after sitting around for that much time. If the tank is near empty try filling it up with fresh gas, it will probably start. If the tank is full you may need to figure out a way to drain the old gas out and replace with some fresh gas. Let us know if that works.

2004 Volkswagen... | Answered on Apr 26, 2013

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