Question about 1994 Mazda Navajo

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On humid hot days my truck is finicky about starting. I don't even hear the fuel pump engage

It will start approximately 3 times and then becomes finicky for the rest of the day. I may have to wait 10-30 miuts and then it will start. I replaced the computer once and it was good for 2 years. then I replaced the computer last summer when it acted up again and it began being finicky after 2 weeks (used computers each time). A friends soninlaw a mechanic thought maybe coil pak?? When I won' start i do not hear the fuel pump. Could it be a relay switch or something? Its odd cause the other day here in upstate NY its not real warm yet about 30 degrees and it began again to give me trouble after 3 good starts I had to wait an hour for it to kick in. Thanks for your help.

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  • Contributor
  • 17 Answers

You don't give any info on vehicle, engine...etc, but I think your friend is right about the coil. You have to try and determine if it's fuel or spark. Could be your fuel filter....

Posted on Mar 22, 2014

Testimonial: "Thanks. I will ask my boys to get info on engine type. I mentioned its a 94 Mazda Navajo. We will check for spark."

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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stormbrewin
  • 426 Answers

SOURCE: 2000 mazda MX-5 1.8l

Have you checked that you have power to the coil on cranking?You may also want to check wether you have a good strong spark at the spark plug.It could be an ignition module breaking down.If you have no power to the coil you may need to change the ignition relay.Its close to the battery.

Posted on Oct 26, 2008

  • 104 Answers

SOURCE: mazda protege 96 very hard to start when cold,

check the mas air flow sensor(is this the 6 cyl) the sensor has a problem with the nose piece inside not moving enough to tell the ecm the propper air flow for the cold start,also check throttle valve for dirt build up around it-if its a four cyl repost

Posted on Oct 05, 2009

Puppet03
  • 172 Answers

SOURCE: 2003 mazda mpv stalls several times while driving,

i would ask the mechanic to check the ignition switch for pitting ....i had this problem with my honda accord for a long time until i finally just switched it for the second time and sanded it down to the point that it would touch but not keep contact to make the pitting .... hope this helped

Posted on Oct 29, 2009

  • 105 Answers

SOURCE: Truck was running rough on rainy days or days

check for water damange getting or ciols or computer

Posted on Mar 14, 2010

  • 1 Answer

SOURCE: 1991 Mazda truck starts, then dies unless

Not a solution but i am going through the exact same nightmare and same symptoms with my 1991 mazda b2200. I've apwnt over two grand to have my rebuilt TWICE and my alternator replaced and still does the same thing just starts only to die 2 seconds or so later unless i let it warm up to its max but will still die when taking turns and stopping at lights.

Posted on Mar 29, 2011

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