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Hi Everyone,
I am new to the forum but been following ETCG vids for a while now. I have been having intermittent crank but no start issue with my car and thought I would seek advice from brilliant minds around here. I live in South Africa and I do not have any background with cars, my knowledge is based on how to videos online and performing basic servicing on my car at every service interval. I am also the only owner of this vehicle from brand new and drive it 99.5% of the time. I will provide as much information as I can, sorry if this post gets a bit long.
My car is a Kia Rio5 1.6 CVVT, manual, 2008 year model. It currently has 161000KM’s (around 100000 miles). Major repairs done is only the clutch has been replaced around March this year, apart from this the normal wear and tear items such as brakes, belts etc. The car has been extremely reliable until now. I do not miss any of the services and make sure I use good quality parts and oil.
My problem started about 3 months ago but the past month it is happening every day. In the mornings when I turn the key, car will crank but won’t start, I have to turn the key at least twice or up to 5 times to get going, when I get to my destination if I get back in the car I would say within the hour the car will start first time no problems. I noticed if the weather is really warm in the afternoon and the car has been sitting for a few hours it can take me 30 mins to an hour to start the car. When the car cranks I see the tachometer reads about 500rpm, I don’t hear the fuel pump spool (never heard the fuel pump run apart from when the car is running since I owned it). I sometimes hear kind of gurgling/bubbling sound which sounds like it is coming from under the car and going towards the fuel rail.
What I have done so far:
– Replaced the fuel pump and filter about 3 months ago when the issue first appeared.
– Tested for power at the pump connector I see 12v on the tester.
– Replaced the crankshaft position sensor a week ago.
– Replaced the starter and the battery (the Bendix gear was bad) also a week ago.
– Put additive into the fuel to clean injectors.
– Cleaned throttle body, IAC and air sensor.
– Checked for spark when the car isn’t starting, the spark is good.
– Checked and replaced fuel pump relay with matching unit.
– Disassembled and cleaned immobiliser antenna contacts.
– Connected OBD2 tool but there are no errors.Additional observations/Info:
– When filling the car up with fuel if the petrol attendant over fill the tank past the auto stop, the car will jerk and cut for a few miles but never stall the engine. When the fuel is filled until the auto stop at the pump, the car runs fine. This was never an issue until 3 months ago.
– I try to fill up when at about 1/4 tank don’t like waiting for the yellow light.
– I am unfortunately limited to only hand tools, have no diagnostic tools apart from the Bluetooth OBD2 tool.
– Apart from the starting problem once the car is running I can drive in heavy traffic, long distance up to 3 hours no stop without any over heat, misfire or power loss.I hope the information provided will be sufficient.
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Replies
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[quote=”Yalcin” post=177519]Thanks guys I am going to test the valve today.[/quote]
Keep us posted on your progress. 🙂
[quote=”college man” post=177527][quote=”Yalcin” post=177519]Thanks guys I am going to test the valve today.[/quote]
Keep us posted on your progress. :)[/quote]
Hi collegeman,
What I tried was to remove the hose going into the valve and block the flow. I just tried to start the car after about 4 hours of sitting there. It struggled to start for a while. I held the gas pedal down while cranking and it started after 2 tries but heard a loud pop as the car started.
Do you think I should put the old fuel pump in?
The car may have been loaded with fuel already. If you leave it blocked does it start right
after it has been cleared from fuel. With the valve shut off you should not have to touch
the gas pedal.[quote=”college man” post=177538]The car may have been loaded with fuel already. If you leave it blocked does it start right
after it has been cleared from fuel. With the valve shut off you should not have to touch
the gas pedal.[/quote]I actually blocked off the hose this morning. Drove around few times which the car started first time every time. When I was leaving work at the end of the day, car was sitting for about 4 hours and that is when the problem occurred again. The hose feeding the purge valve has no way of flowing through the valve as it is removed and plugged. Maybe I should keep testing it tomorrow? Is there a way I can test the fuel pump with voltmeter for resistance, would it help determine if the pump is faulty?
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