Mazda 626 No Start - DIY Test Will Work For Any Car

There is nothing more frustrating than an intermittent fault!
This Mazda is being very temperamental. One time it will start, other times……not so much.
Here are some basic testing procedures, with some more complex ones in the mix to figure what is the cause of a no start situation.
#mazda#autorepairs#miraclemax
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Disclaimer:
MiracleMAX wants you to be safe, however, no guarantee can be given against improper use or unauthorised modifications on the information provided. The repair shown in this video is carried out at your own risk and any property damage or injury is your own responsibility. Please ensure you carry out this repair safely using approved safe work practices, correct use of recommended tools and equipment. This video is educational only and is no guarantee of a result if done incorrectly. Any injury, damage or loss due to incorrect use of tools, information or equipment is the sole responsibility of the person carrying out the repair and not MiracleMAX
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[@colinreid7305]

Completely agree in asking the costumer what the vehicle is doing as one can be go up the garden path with incorrect info.
Top class basic info for DIY in this situation. If possible, I use a timing light on the plug wires as a quick test.

[@MiracleMAX]

Customers can sometimes be one of the greatest obstacles to a good diagnostic path.
Good idea with the timing light 👍
Thanks for your subscription 😊

[@darthphilfy]

You have a cheeky apprentice.😂
Another great video mate, thanks.

[@MiracleMAX]

Thanks 👍Yes, she is! 😁

[@nigelwebber1472]

Hi MM and SJ, interesting to see inside the pump. Thanks for the vid.

[@MiracleMAX]

Glad you enjoyed it 😊

[@tdub5899]

Another good diagnosis Max. Interested in your thoughts on changing the pump as you did or changing the entire fuel module (including sender, valving etc). Aftermarket units are fairly cost effective and changing the entire unit removes the risk of a reassembly error and renews other components that have been in the same environment as the pump for the same time. Might the worth the difference in unit cost.

[@MiracleMAX]

Depending on the type of pump, I would replace the entire module.
In this case, this is not a module assembly, simply a pump with a separate sender unit. As I had no trouble with the sender, only the pump was replaced. Inside the pump, it contains a relief valve (for over pressure) and a non-return valve (to stop fuel leak-back when the pump is turned off). So, only the pump needed replacement. But yes, as you said, if it was a module style, generally the entire assembly is replaced.
Thanks for your comment. 😉👍

[@kairu_aname]

If you want a good acronym to explain a car requirement to start it's;
Fasttec.
Fuel
Air
Spark
Timing(crank)
Timing(distributor(or in modern cars cam))
Exhaust
Compression

[@MiracleMAX]

Nice one 😉👍

[@abdul-kabiralegbe5660]

Add security system to the list.

[@MiracleMAX]

@@abdul-kabiralegbe5660 Yes the immobiliser can catch us out