I need to know location of vaccum line from passengerside valve cover to where on V-6.

Here's a link showing both valve cover gaskets for the 98 year. Valve Cover Gasket 1998 BMW 528I 6 Cylinders 2 8L EFI DOHC AutoZone com

need to know the make of car engine size etc.? but most likely the positive crank case ventilation pcv valve line

It goes to the Pvc system. Usually onto a valve cover

Just the hose or the PCV (not pvc) valve? The hose is probably a dealer-only item - go to the Mazda parts department w/the broken piece and they'll get you a new one. The PCV is avl. @ most auto parts stores - and is cheap - <$20.

GL,
Td

Hope this helps!

Look closely.

Is there any vacuum lines off?

Unplugged sensors? and or wires or lines bolted under the valve cover?


I cant make this stuff up...


Hope this tip helps.

R/
David

if you stand on the passengerside looking at motor the sensor is located to the left of the timing belt cover near the top of the motor.hope this helps.

How many miles are on the car? It could be one of three things.
1. Check vaccum lines running to the valve covers. The rubber nipple that connects to the valve cover sometimes gets a hole.
2. Could be 02 sensor depending if its lean on bank 1 or bank 2.
3. Also check DPFE hose's. Located on back of motor running from EGR valve exhuast tube.

If its non turbo it really does not matter which vacuum line you use as long as it feeds to the manifold. I'd use one thats conveniently located, if its turbo you'll have to install a one way valve in the line to stop boost from escaping into your lubricant.

I repaired this problem on my 1998 F150 4.6L. It had a bad vaccum line between the vaccum check valve and the vaccum storage tank. The vaccum check valve is located between the battery and the firewall. The vaccum storage tank is attached to the rear of the battery case.