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Old 06-24-2019, 05:17 PM   #1 (permalink)
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Default Hard Engine start

Hi everyone,

I have SX4, Model 2009, 1.6 Liter engine, 4V, 16 valves, with a 5 speeds of manual transmission. The odometer is 250K. And here is the problem:

The engine takes long crank to start especially when it sits off for a while (e.g. more than half an hour). In the morning, it takes three long tries at least. If it is working, and I shut off the engine, then directly crank it, it starts very quickly. Moreover, I smell gasoline in the exhaust most of the time.

I have checked pump pressure and it is fine, cleaned the fuel filter and injectors. Also, I have checked the computer and no sensor fault was identified.
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Old 06-24-2019, 05:44 PM   #2 (permalink)
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with the scanner and an IR thermometer, check the ECT and IAT they should match at ambient temp...

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Old 06-24-2019, 05:59 PM   #3 (permalink)
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So if they do not match, will the problem be on both of them?

Moreover, can I measure their resistance and see if they match the manual service specification?
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Old 06-24-2019, 06:34 PM   #4 (permalink)
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From the contents of your PM,, seems you would rather guess than diagnose...

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Old 06-30-2019, 05:11 PM   #5 (permalink)
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Hello, everyone,
I have checked the CTS and IAT , and they are matched at ambient temperature .. any suggestion to diagnose ?
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Old 06-30-2019, 07:14 PM   #6 (permalink)
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Quote:
Originally Posted by Mr.vara View Post
Hello, everyone,
I have checked the CTS and IAT , and they are matched at ambient temperature .. any suggestion to diagnose ?
what are they reading at operating temp? not uncommon for either to go weird once running. CTS will obviously be hotter and should match water temp.
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Old 07-01-2019, 11:00 AM   #7 (permalink)
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Actually, I have checked CTS measuring its resistance until it reaches to operating temperature .. the values were shown as characterize in the manual service.
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