CX-5 2.2 Diesel - Stalling on start up, then cranking but not starting
 

Hi all,

I own a 2015/2016 Mazda CX 5 2.2D Akera with mileage +/- 60 000 km. I live in South Africa.

Without any pre-cursor or warning one afternoon, the vehicle cranked and refused to start. After multiple crank attempts the vehicle did start, drove fine and behaved fine for another 150+ km before starting, stalling and refusing to start again.

I have been doing reading and found that Mazda diesel vehicles have known issues with the suction valve becoming clogged with carbon deposits and leading to premature wear of other engine components.

Has anybody here had any similar issues which may assist the dealership in correctly diagnosing the problem?

Hi Basmith1991,

Did you come right at all? Having the same problem but can't find a solution, had it taken in to a number of different places, nobody seems to know what the issue is. Also based in South Africa.

Cheers

Hi tllailvaux,

Yes! Did eventually come right after getting a second opinion. The original dealer had cross threaded the fuel filter sedimentary switch which seals the fuel line and allows a vacuum to be created. The fuel pump then uses this vacuum to pump fuel into the high pressure side of the pump and into the injector rail.

As a result of the cross thread, the switch had a developed a hairline crack which kept disappating the vacuum and creating an airlock which would leave the car starved for fuel and stranded.

Hope this helps! The part is only R500 and should be carefully threaded back to avoid reoccurrence.

Hi @basmith1991 , thanks for the response!

That's interesting... Will definitely get this checked out then. Problem all started shortly after we sent it in for a tensioner belt replacement, something along those lines... Maybe a similar thing happened with us.

Cheers