My 1990 vw Cabriolet water pump (no AC, no power steering) is leaking - but only at start-up. At the bottom of the pump there is what looks like a cap - grey and penny-sized. At start-up, the pump literally pees around this cap for about 30 seconds, then stops. This only happens when the engine is cold. So if I, say, drive to a mall, then leave two hours later, it won't leak. But next morning, it has a pee when I start up, then stops. So of course, when I take it to a tech, they say, it's not leaking. Help?
Any time ANY vehicle leaks at that weep hole, it's because the seal in the water pump has gone bad. All water pumps have this same weep hole in the same position to let you know the seal is bad. Makes no difference if it has a penny over the hole or not, replace the water pump and it won't "p" on you any more.
SOURCE: Might have transmission fluid leak????
its fairly easy to be honest.you only need the tool to check transmision temp.it should be checked at a temp of 40 degrees c.so i reckon 10-15 mins from cold on idle(dont drive it ) should be about right.then remove the plug in the sump.this exposes a tube that goes in to the sump that is the right length so that only excess oil will drain out.Bassicaly the tube allows the sump to drain until the correct ammount of oil is in there.if you need to top up there is a short tube with a red cover over the top of it.remove this and top up until oil drains out the sump from the hole where the sump plug goes.go here for a picture that explains all.......
http://www.2carpros.com/forum/transmission-fluid-vt159056.html
SOURCE: 1980 VW rabbit, manual/fuel injection: I am
it starts from cold because the auto choke is on ,allowing a richer mixture ,try removing the sender unit in the tank and seeing if the connection from the pump to the outlet connection is ok or leaking causing a loss of fuel pressure
SOURCE: 2002 VW Jetta 1.8T has a leak somewhere.Need diagram
Bring the car into a repair shop and have them pressure test it for leaks or you can purchase a pressure tester make sure you get the appropriate adapter for your cars radiator filler neck or resovoir, and check for leaks yourself. Make sure the car is cold and there is the appropriate mixtiure of coolant and water in the system, prior to pressure testing. Also do a visual inspection of the cooling system when the vehicle is cold and look for leaks.
SOURCE: Check Engine lite comes on Code PO440
16824/P0440/001088 - EVAP Emission Control Sys: Malfunction
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SOURCE: Losing coolant from the reservoir but cannot see
my '01 Jetta had a similar problem. I could always smell coolant and the bottle was always low. I crawled under the car and there it was..a caked on mess of pink antifreeze. There is a plastic intersection 3 way valve where the coolant temp sensor resides. it has 2 bolts and a rubber o-ring. Because it is plastic, it cracks. it drips down onto areas which are really not visible from above and then sizzles and melts onto areas under the engine. The part was only about $25, took 30 min to install and my problem is now fixed. Air was getting into the system through the small crack in the valve further complicating the system operation.
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