Question about 2002 Mazda MPV

2 Answers

How do I know if my timing chain was replaced correctly?

I had my timing chain replaced. I took it back to the mechanic because of irregular vibration when at idle with car in Drive and especially when the AC is ON. He drove the Van lifted hood and He said the motor mounts need to be replaced. The Van was fine before the work was done and vibrated after the work was done. I think it may be an incorrect timing belt replacement. Can they check timing belt without having to take all the parts back out again? What to do now?

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2 Answers

I would guess all your motor & transaxle mounts
need replacing on a 2002. I would do them all
if it was mine
The timing belt would have to be looked at with
a camera, that most shops don't likely have,someday
they will realize they need every new tool out there.
They can look at scan tool data & use an oscilloscope
to check cam & crank positions.
Can't go by the A/C being on ,as it loads the engine
& cycles on & off & pulls the idle down,the computer
should be able to adjust that, but it takes time if your
braking quickly etc.
Shop do a poor job of selling services because no
trust what they say
I would know you mounts are gone when I saw a 11
year old car pull on to the lot
Now try & sell that & a need timing belt together
You would be considered dishonest & accused
of ripping off the customer,which is as not the case.
You can find a shopping list of worn & neglected parts
on all vehicles

Posted on Jul 19, 2013

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In most cases they can take the valve cover off to expose the Upper Cam sprockets. They can also take the tire off and get to the Crank to set TDC. With the Crank pulley lined at TDC they can see if the Cam sprockets are on their correct marks.

Posted on Jul 19, 2013

  • wadingriver
    wadingriver Jul 19, 2013

    Oh, some motor mounts have to come off to do this job, while other take the strain of the engine hanging on them. They may have stressed them to get them off OR they didn't put them on correctly. That may be your vibration.



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Posted on Jan 02, 2017

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SOURCE: Does the water pump have to be replaced with the timing belt?

teh resaon he wants to replace your water pump is because it runs off of your timing belt.and if it should fail later down the road after belt replacement.then you will be looking at another big expense having the same job done twice.i would rcomend you do get the waterpump replaced for you other problem im not sure. samboiv

Posted on Jun 19, 2008

  • 3 Answers

SOURCE: I have a 2001 Millenia

Replaced the timing belt and Tensioner and it works great now.

Posted on Dec 20, 2008

  • 110 Answers

SOURCE: 2001 B3000 Mazda truck vibrating when idling and

have you had the catalytic converter checked at the local exhaust shop? try that first. is the truck a 4wd? time to start checking the ujoints. do a compression check on all cylinders and see if there is a major drop in that hole that is misfiring. let me know what you come up with.

Posted on Mar 05, 2009

  • 545 Answers

SOURCE: drivetrain vibration

try your drive shaft common problem for 240sx

Posted on Jun 03, 2009

  • 2 Answers

SOURCE: I have a 2003 Mazda MPV , the problem only happen

I ahve same issue with my 2004 MPV. I replaced the plugs, coils etc. No help.

did you ever get it fixed?

Posted on Mar 24, 2010

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If your mechanic is a good mechanic you should be able to take it back into that mechanic and have them recheck their work at no additional cost. There are many bolts holding on the: Power Steering Pump, Alternator, Water Pump, Belt Tensioner, Crankshaft Pulley and Idle Pulley. Many of these have to be removed inorder to replace the Timing Chain Cover Gasket. It they were not tightened down correctly, this could be the vibration you are describing. Also the Front (right side) Motor Mount had to be loosened to gain access. If this was not tightened down correctly, it could cause vibration.
The Power Steering Pump itself not only has mounting bolts, but also the retaining bolts on the pulley. Again if these were not tightened down correctly, it could cause the pulley to vibrate.
Talk to the mechanic (again if you have to) and work it out with them. Most good mechanic will help you.
But to answer your question directly: Yes there is a very good possibility that this has something to do with the Timing Gasket Cover Gasket work.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at

Jan 21, 2010 | 1999 Plymouth Grand Voyager

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Vibrating/Shaking when accelerating or being put in reverse

You may have some timing issue with the ignition or valves. i would have the timing chain/belt checked for ware. i also recommend running a scan on the ecm for stored codes that may be saved or locked for some reason. check the crank sensor housing for lose wires as well.

May 22, 2009 | 1994 Honda Passport

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Timing belt replacement

From what you're describing here, the timing belt wasn't installed properly to it's timing marks from the start. You mentioned it ran rough when you got the car back. That immediately told me the timing marks were not correctly lined up. If the belt wasn't tensioned correctly, the belt will gradually start retarding itself to the point of it not running. You did mention that as well already too. In other words, the belt slowly got looser and looser until the valves were not opening/closing at the correct time and eventually the piston hit the valve due to the lack of the tension of the belt not being correct. I really fail to beleive that the tensioner went out "all of a sudden" especially right after the water pump was installed. The reason it is recommended that the timing belt be replaced at the time of the water pump is antifreeze/coolant will SLOWLY deteriorate the belt causing premature wear. This doesn't happen in a week either, this take a long time to happen. My professional opinion is the timing belt was incorrectly re-installed when the water pump was replaced. I've been in the auto repair business for a very long time (28 years) and I have seen this very thing happen when the customer tries to replace the timing belt or water pump themselves especially when there was a lack of experience.

Oct 31, 2008 | 1997 Hyundai Sonata

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Help me please

it could be a problem with miss firing. if it vibrates, one cylinder could be not firing and specially with a load.

try to check you spark plugs and replace if possible.

tnx 4 using fixya,


Sep 09, 2008 | 2000 Suzuki Vitara

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