Top 10 2004 Mazda MPV Questions & Answers

I think the 04 should be very similar to the 03. Here is my fix for the 03

I just fixed this same problem. It happened to me 3 different times in a month so I got good at it. Before you dive into removing your door try this. Pull the door handle and release it letting it snap back several times. The problem is a half open door latch that won't let the door unlock. Do this as aggressively as you can to attempt to get the latch to return to its original position. Check the door lock between flicks.

Ok, if that didn't work, here is how to remove the door.
1. Remove the screw behind the door latch, you will have to pop the plastic cover off first.
2. Remove the rubber insert in the door handle
3. Remove the screw that is now visible
4. Now remove the window/lock control module, the back is free but the front has a plastic lip so lift the back up and pull towards the back of the van.
5. Remove the clips that attach to the lock and to the window controls (these can be a pain)
5. (Optional) Remove the bracket that held the window/lock control module

At this point your door is basically free, it is only held in place with plastic clips that can be easily forced off. If your door were open you would simple pull the bottom of the door out (hinged at the window) and lift it off. But since we can't pull because the door is closed we have to force it out.

From here it is pretty simple. Move the seat all the way back and tip the seat way back. Lift the door panel straight up. You will be breaking 2 plastic clips from the rear part but once you do it just pulls out. This is not that easy because the space is limited but just keep pulling and force the rear end of the door panel past the b-pillar. Once you do this it is free.

Have fun and try to keep the black gook from getting everywhere.

Oh, to fix the door lock just oil/grease it and manually move the mechanism several times.

If changing the thermostat didn't work, have the heater control valve checked, it may not be opening all the way to let the coolant circulate thru the heater core fully.

I show $47 for each coil at rockauto.com here is the part #
STANDARD MOTOR PRODUCTS Part # UF406
here is a picture, is this the coil?

Does anyone know the cylinder number locations??

You have the wrong type hose on the pcv valvle. It isn't vacuum hose.

You have moisture getting into the ignition. The check engine light is coming on because the engine is stumbling. You can have a local detail shop detail and seal/waterproof your engine compartment

1. External Leaks
You need to get the vehicle to a mechanic to check all flexible coolant hoses, hose connections, around the exterior of the water pump and the entire radiator. To do properly the vehicle also needs to be on a hoist. If there is an external leak you should find coolant dripping from the front of the car while the engine is idling and the cooling system is fully pressurized. However it depends how bad the leak is and it's location.

2. Internal Leak

If coolant is leaking into the engine this is a serious problem and needs to be identified by a competent mechanic. For example, if you have a blown head gasket coolant will blow into the engine and contaminate the engine oil. If you check the oil in the engine's sump it should be completely free from coolant contamination.
You should also check the coolant in the radiator for any signs of oil contamination. If there is coolant in the oil then there will also likely be engine oil which has blown into the engines coolant passages and then mixed with the coolant.
IF you can find traces of coolant in your engine oil (or oil in the coolant) the likely problem will be a blown head gasket and the head on the engine will need to be removed and inspected .

Blown head gaskets are usually a result of an owner allowing the engine to overheat as a result of low coolant level, failed water pump or faulty thermostat. Overheating can also cause major damage to the head on the engine.

The fuel filter for your vehicle is located on the Fuel Pump Unit, which is located in the vehicle fuel tank. The Fuel Pump Unit must be removed from the top of the fuel tank in order to replace the Fuel Filter.

# B2-16 in pic...

possibly the indicator bulb on the dash - at the air bag - is blown - or the seat sensor has failed. best be prepared to pay 150 buchs and have the dealer screw you for the fix.