Question about 2004 Audi A4

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Part name and part number

It is a valve that comes off the back of the valve cover connecting to the small hose. A short hose that turns back about 180 degrees from the valve cover. The hose is about 3-4 inches then there is the part I am lloking for. Maybe a vacuum check valve.

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  • mdhmara Aug 02, 2008

    Please help.



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Can you post a picture of the valve? Or at least tell us which engine you have?

Posted on Aug 15, 2008


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The location of WHAT???

Diagnostic Test Code (DTC) P1250 is a manufacturer - specific code which has a general description of "Pressure Regulator Control (PRC) Solenoid Circuit Malfunction".

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Where is the EGR pressure feedback sensor?

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Where do I find the PCV valve on a 1989 Pontiac Bonneville 3800 V6

The pcv valve is located in the rocker cover on the left side of the engine, it is just a small black plastic thing with a hose stuck to it. Pull it out and pull off the hose, hook it back up, you might need a new grommet, but it should be no problem, all auto parts stores have that stuff in stock. If you don't see it on the left, check the right. I don't think I have ever seen one anyplace else. Hope this helps.

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Location of TDC senor

Not only am I going to give you the sensor loaction, but I am also giving you step by step instructions on you can repair it yourself, and we also sell the part:

Step 1: Disconnect the Negative Battery Cable.

Step 2: Remove the Plastic Ignition Coil Wire Cover by turning the 2 Screw hooks counter-clock wise and lift it off.

Step 3: Unplug all Spark plug wires and remove each bolt for the ignition coils and put them a side. keep them in order from left to right (1 2 3 4) so you can put them in the same cylinder.

Step 4: Remove the 2 nuts on the Spark Plug Wiring Harness

Step 5: Remove the two nuts on the Throttle Cables, unplug the wire on the left side of the valve cover and also de-tach the AC hose clamp from the back right side of the valve cover disconnect the PCV hose i believe on the back of the Valve Cover. push the throttle cables up and behind the Air Box.

AC Hose Clamp

Step 6: I already had my valve cover off, but you may now loosen the bolts on it. i think there were 5. do it in this sequence couple turns at a time to prevent warping or any other damage to the valve cover.

Step 7: Unbolt the AC Hose Clamp so that you can slide the spark plug harness wires out of the way to take off the Valve Cover a little more Easily.

Step 8:Remove the Valve Cover. start by gently lifting it from all sides around to make sure it is fully losse. start from the left and lift lighty. you need to angle it out under the AC Hose. again, mine is off. but this is how you would lift it out.

Step 9: Cover the Head with a Tshirt, Rag, or any cloth that is big enough so that nothing falls into the head.

Step 10: Pull the Power Steering Reservoir straight up and push it to the side along with the hoses. DO NOT DISCONNECT THESE HOSES.

Step 11: Pull out the CMP(TDC Sensor) Wire Grommet, and unplug the wire.

Step 12: Remove the 3 Nuts on the Upper Timing Belt Cover. the one on the far left is the hardest because its in a tight spot. i simply used a rachet and a 2" extension. loosen it as much as you can with the ratchet then use a medum size extension and the 10mm socket without the ratchet and loosen it with your hand until you can use your bare hands. to get the bolt out. these are pretty small. be sure not to drop them below. once the three are removed you can pull the cover up and out under the AC Hose over the Coverd Head.

Step 13: Remove the 10mm Bolt on the Sensor and pull it out and then the sensor after. this one is very short so i suggest using the ratchet with a small turn just to loosen it. then take it out with you hand very slowly and do not remove you hand from this bolt. it'll come out in a couple turns.

Step 14: Put the New CMP/TDC Sensor in mounting it with the same bolt. notice there is a small hole on in the position to hole the sensor in place. be careful putting the bolt in so you dont drop it.

CMP/TDC Sensor

Sensor Fitting Hole

Do the Reverse to put everything back together. hope this helps.

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Trying to find a part name so I can replace a hose. It is a round,black plastic piece that is on top of the valve cover. It has a connection to the air intake, the valve cover,and to a tube coming from the...

it's possibly the PVC valve,but if it's a hose you need to replace,hoses are identified by the inside diameter measurement.measure dia. of fitting onto which it fits,or take a piece of it to an auto parts store to find a match.

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98 Dodge Grand Caravan

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