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When it rains my 1994 mazda mpv will not start, why is that? I have checked for moisture under distributor cap and it was dry can someone plz tell me thanx

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  • 151 Answers

Bad plug wires, weak coil, needs new plugs or moisture is causing some other problem with a sensor or connector.

Posted on May 09, 2014

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Posted on Jan 02, 2017

SOURCE: mazda mpv problem

I agree. I have had this problem twice and it has been a coil. This model has individual coil packs for each cylinder, so unless you have the tools to find out which cylinder is not getting full spark, have a mechanic do it.
Side note...I recommend inducting about 5 oz. of Sea-Foam through a vacuum line every 20,00 miles or so. The rest of the can goes into the fuel tank to clean the injectors. It has helped smooth out a rough idle.
And a can of Restore with each oil change after 100,000 miles will take care of hydraulic lifter chatter.

Posted on May 24, 2008

  • 6784 Answers

SOURCE: i want to put a new radiator in my 2000 mazda mpv minivan

Radiator Removal Step1Open the radiator drain plug, located somewhere near the lowest pointof the radiator, and let the coolant flow into a catch basin to drainit. Loosen the lower radiator hose to drain the coolant if yourradiator does not have a drain plug. Step2Detach the hoses from the radiator. Loosen the nose clamps and pull thehoses off of their attachment necks. Remove the auxiliary belts bysliding them off of their pulleys to gain more work room. Step3 Remove the enginecooling fan and the radiator shroud. This step is vehicle-specific, andno single process will cover all types of engines. In most cases, youhave to use a wide box wrench to release the mounting bolt that holdsthe fan to the engine. Set your cooling fan down upright to protect itsclutch. Loosen the mounting hardware that holds the shroud. You mighthave to pull the fan and the shroud out together if clearance does notpermit you to pull them out separately. Step4Remove any mounting screws, bolts, clips or other remaining attachmentpoints. Put these pieces of hardware into a container so that you donot lose them. Step5Lift the radiator clear of the engine. This can result in a mess ofcoolant as the radiator shifts around, so have newspaper and a catchbasin underneath the radiator. Radiator Replacement Step1Slide the replacement radiator into place. Handle it gently so you donot damage the delicate cooling fins or hose necks. Step2 Replace the mounting hardware. Torque them so you do not break the new radiator. Step3 Reinstall the cooling fan and the shroud by simply reversing the fan and shroud removal process. Step4Reattach the cooling hoses to their mounting necks. Snug the hoseclamps down, being careful not to over tighten. Consider replacing yourcooling hoses at this time, as they become brittle and prone to failurewith age. Replace them all if you replace one. Step5Install and tension the auxiliary belts if you removed them to get moreroom to work. Slide them back over their pulleys and adjust tension byturning the tension adjustment nuts and bolts. Cooling Addition Step1 Mix the replacement coolant and distilled water in the right proportions for your vehicle and your climate. Step2Pour the coolant into the proper fill area. Depending on your vehicle,you may pour the coolant directly into your replacement radiator, intoyour overflow reservoir or somewhere else. Step3 Run the engine to allow the coolant to circulate and add more as necessary. Step4Bleed the air from the system. There will be a bleed valve somewhere inthe system, although its location will vary from vehicle to vehicle.Open the valve with a wrench and watch for bubbles. You know yourradiator replacement is done when no more air bubbles bleed from thesystem and your coolant is fully up to temperature.

Posted on Mar 16, 2009

  • 1779 Answers

SOURCE: moisture in truck, with check gas cap message on dash

The two are of course not related. Check the trunk seal for missing portion, tears, splits, etc. this has to be where the rain is coming in. You can check for leaks with a hose and climb in the trunk with a flashlight, having a trusty helper direct water to one area at a time to check for the leak. The gas cap light is probably on due to a defective evap. vent valve, which is located behind the left rear tire near fill tube for gas tank.

Posted on May 12, 2009

  • 80 Answers

SOURCE: 2002 mazda mpv firing order please

let me know if this help you....


Posted on Oct 04, 2009

Testimonial: "tank you that was very helpfull because i call to mazda and they tell me the coil number 5 was in the midle on back "

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SOURCE: 1997 Chevy Tahoe Moisture in the distributor Cap

I have the same problem. I punched the screens all the way though that are down in the distributor. This did not correct the problem but it did slow it down. Now I only have to change the cap ever few months. I don't leave home without a spare cap.

Posted on Jan 26, 2010

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Overdrive light comes on and car decelerates when raining

you have a connection on the trany that is effected-is shorting out by the moisture-take it to your friendly mazda repairman and have him check it out-Denny

Nov 06, 2013 | 2001 Mazda MPV

1 Answer


does that truck have a distributor cap? if so then the moisture of the rain is causing it not to fire most likely. replace cap or next time it rains take cap off and dry it with a blow dryer inside the cap, without removing wires and if it starts when you remount the cap then replace it and seal around the cap and distributor as well as use electrolite grease on the contact points to repel moisture

Aug 14, 2011 | 1995 GMC Jimmy

1 Answer

My 2000 GMC Jimmy wont start in the rain, when it stops raining and everything dries up it will then start do you know what the problem could be, thank you

if your vehicle has a distributor cap on it, this is where i would check for a cracked cap, this will allow moisture to get into, normally when it rains.

Apr 25, 2011 | 2000 GMC Jimmy

1 Answer

Car wont start when it rains

I'd say it's the spark plug or distributor cap. Instead of writing out a long explanation, here's one already done for you! Should help...
    Spark Plug
  1. The most common reason for a car not starting in the rain is found in the spark plugs. Wire insulation can wear thin and this causes the voltage to arc to the metal of the car engine rather then going into the spark plug. You can check for this visually by opening the hood when it's wet outside and trying to start the car. You might be able to see an arc from the spark plug wires.
  2. Distributor Cap
  3. The second most common issue is the distributor cap. Take a good physical examination of your distributor cap for any signs of a cracks. Also remove the distributor cap and check the inside of it for moisture. If you find any, wipe it clean; it won't work while wet.
  4. Other Issues
  5. If a check of the spark plugs and the distribution cap has not solved your problem, then you have a bigger issue. There are dozens of other reasons a car won't start, from battery corrosion to a fuel filter issue keeping gas from reaching the engine. Though few of these other issues will only affect your vehicle during the rain.

Read more: Why Won't My Car Start When It Rains? '

Feb 02, 2011 | 1994 Chrysler LHS

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Consume too much gas after replacing spar plugs, wires, cap

timing will need to be readjusted!
Then the air fuel mixture!
Cheers Rob

Aug 16, 2009 | 1994 Mazda MPV

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1994 suburban gmc - no start in heavy rain or high humidity

When was the last time the truck was tuned up? sounds like there is a hair line crack in the distributor cap witch in turn lets moisture get in there and it won't start until it dries back out, the heat from the hair dryer is most likely drying out the moisture in the cap seeing its so close to the throtel body. Do a tune up.

Jul 14, 2009 | 1999 GMC Suburban

1 Answer

1989 volvo DL won't start in wet weather

Check the distributor cap. It may have a fine crack in it allowing moisture in causing what u describe. Let me know how u make out.

Dec 27, 2008 | 1994 Volvo 850

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Rough running after rain

It sounds as thou you have moisture in your distributor.Pull the distributor cap off and let the car sit and dry out for a couple of days and see if that fixes the problem.

Sep 30, 2008 | 1994 Volvo 850

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2004 mazda mpv

I don't have a solution to the problem, but Mazda should. I have replaced 3 different ignition coils in the last 3 months. I am spending more on repairs than I was in a car payment. Mazda has been no help at all!

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