I AM HAVING TROUBLE WHEN STARTING MY CX7

2009 Mazda CX7

Tiny

RMK1981

February, 23, 2013 AT 10:35 AM

I am having trouble when starting my CX7. It starts, but it is sluggish sometimes. I took it to the dealer service department and they had it about 48 hours and couldn't get it to do it. Ran diagnostics and said it wasn't the starter, battery, or alternator. Couldn't find anything and have the car back. It then started fine a couple times and now is sluggish again. The problem seems to happen after I have driven and then it sits a few hours. I'm at a loss and don't want to have to wait for it to leave me stranded somewhere before I find out what's going on. Thanks!

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6 Answers

Tiny

mhpautos

February, 23, 2013 AT 11:42 AM

So is it a slow crank speed and hard to start? Bit like a battery going flat?

Tiny

RMK1981

February, 23, 2013 AT 2:05 PM

It's not the battery. It was replaced in November and then again last week because that's what the mechanic first thought.

Tiny

RMK1981

February, 23, 2013 AT 10:24 PM

But yes, to answer your question. It acts like a battery going flat. But then the battery tests fine.

Tiny

mhpautos

February, 24, 2013 AT 8:48 AM

Slow cranking can be polling starter motor, poor earth, low starter cranking voltage, high resistance across the solenoid contacts, have these been checked as yet?

Tiny

RMK1981

February, 24, 2013 AT 1:38 PM

To my knowledge none of that was checked. I will call Monday and ask them to tell me everything that they checked. Thank you.

Tiny

RMK1981

February, 26, 2013 AT 5:46 PM

I called the service department and they did the following: checked battery; checked alternator; checked starter; tested charging system; checked for error codes; and made sure the terminals were tight.

I've also noticed that it only has a slow start after I've driven for about an hour. It's fine around town.

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