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Author Topic: Problem starting car and misfiring  (Read 1263 times)

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Kumamoto

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Problem starting car and misfiring
« on: 22 March 2010, 05:27:35 »
My car has been is very reluctant to start every morning or any other time as long as the engine is cold!
After the car warms up, it runs smoothly for the whole day until the egine gets cold.
I basicaly start the car and it starts briefly....shudders and goes off...this happens for about  3 or 4 times....then on the fifth attempt....the car starts very rough running....vibrates alot and the car misfires once or twice... then it starts idlying normal and after 2 minutes the car is running perfect...no other problems for the rest of the day until  next time when the engine is cold....

I have noticed an oil leak just above where the gear box meets the egine and the mechanic had alook at it and recommended chaning the head gaskets to curb the oil leak, but i think the oil is leaking becuase some pipes or breathers are blocked. They have cleaned the Throttle body twice..but no joy.
Did a tech II and no error codes were reported. Any ideas please...its starting to get frustrating as the problem has been going on for about 4 weeks :-[
« Last Edit: 22 March 2010, 05:28:33 by kumamoto »
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vic

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Re: Problem starting car and misfiring
« Reply #1 on: 22 March 2010, 08:59:00 »
Turn the ignition off, disconnect the connector to the MAF and start her up with the MAF disconnected. If she starts and idles better, a fubar MAF could be your problem. If it dosen't at least you know thats one thing it's not. You should also check the air tunking between air filter and throttle body for splits in the underside.
VC :y
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Kumamoto

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Re: Problem starting car and misfiring
« Reply #2 on: 22 March 2010, 16:44:26 »
Thanks... will try this and advice.
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Gaffers

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Re: Problem starting car and misfiring
« Reply #3 on: 22 March 2010, 16:49:40 »
could be icv, if the MAF trick doesn't work give the icv a good clean :y
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feeutfo

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Re: Problem starting car and misfiring
« Reply #4 on: 22 March 2010, 17:14:54 »
Quote
could be icv, if the MAF trick doesn't work give the icv a good clean :y
cough*2.2*cough
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Kumamoto

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Re: Problem starting car and misfiring
« Reply #5 on: 22 March 2010, 17:17:53 »
Any more ideas before i take the car to my local STEALERS (a bit unfair on the dealers here as their labour charge is 40 quid a day!!) but they will truly shaft you if you ask them to get parts for you....
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Kumamoto

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Re: Problem starting car and misfiring
« Reply #6 on: 22 March 2010, 19:23:05 »
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could be icv, if the MAF trick doesn't work give the icv a good clean :y
Gaffer...sorry, but where exactly is the ICV ?
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PhilRich

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Re: Problem starting car and misfiring
« Reply #7 on: 22 March 2010, 19:56:25 »
Quote
Quote
could be icv, if the MAF trick doesn't work give the icv a good clean :y
Gaffer...sorry, but where exactly is the ICV ?


I'm afraid Gaffers had a slip of of the pen earlier mate, your car doesn't have a seperate ICV. As yours is a 2.2, it has a Throttle Body, which is the lump of aluminium at the other end of the air intake trunking from the air filter box. You will find a 'howto' in the Maintenance section for cleaning this (you will need a new gasket but this is cheap) (here at any rate!). HTH  :y
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If it ain't broke keep fixing it 'til it is!

feeutfo

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Re: Problem starting car and misfiring
« Reply #8 on: 22 March 2010, 20:50:44 »
guess its worth cleaning the breathers mentioned?
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Kumamoto

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Re: Problem starting car and misfiring
« Reply #9 on: 23 March 2010, 05:30:35 »
Quote
Quote
Quote
could be icv, if the MAF trick doesn't work give the icv a good clean :y
Gaffer...sorry, but where exactly is the ICV ?


I'm afraid Gaffers had a slip of of the pen earlier mate, your car doesn't have a seperate ICV. As yours is a 2.2, it has a Throttle Body, which is the lump of aluminium at the other end of the air intake trunking from the air filter box. You will find a 'howto' in the Maintenance section for cleaning this (you will need a new gasket but this is cheap) (here at any rate!). HTH  :y
No wonder the grease monkey here could never find the ICV, i thought he was just incompetent. Now hes been absolved ;D
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Kumamoto

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Re: Problem starting car and misfiring
« Reply #10 on: 23 March 2010, 16:00:09 »
Quote
Turn the ignition off, disconnect the connector to the MAF and start her up with the MAF disconnected. If she starts and idles better, a fubar MAF could be your problem. If it dosen't at least you know thats one thing it's not. You should also check the air tunking between air filter and throttle body for splits in the underside.
VC :y

This trick seems to have yielded very good results. Basically the i disconnected the MAF as advised and the car fired straight during the first attempt, there was no shudder,no misfire just smooth idylling.
I had a spare new MAF replaced it today and will see how tommorow morning goes.... Looks good so far. ;)
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vic

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Re: Problem starting car and misfiring
« Reply #11 on: 23 March 2010, 16:30:11 »
Sounds like a 'result' and you're on the right track. :y
 A word of caution don't use cheap pattern MAFs, I've been there recently and got the T-shirt. (£33.00 for a pattern MAF and it lasted all of a week) Genuine Siemens replacement £65 but still going strog....thus far.
Good luck
VC 8-)
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Kumamoto

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Re: Problem starting car and misfiring
« Reply #12 on: 23 March 2010, 16:39:59 »
Quote
Sounds like a 'result' and you're on the right track. :y
 A word of caution don't use cheap pattern MAFs, I've been there recently and got the T-shirt. (£33.00 for a pattern MAF and it lasted all of a week) Genuine Siemens replacement £65 but still going strog....thus far.
Good luck
VC 8-)
oooopppps!!! i replaced a dodgy siemens MAF with a cheap pattern one....Where did you get your siemens from for 65 gbp ??
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vic

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Re: Problem starting car and misfiring
« Reply #13 on: 23 March 2010, 16:46:26 »
Have a look at these folk
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190307134070&ssPageName=STRK:MEWNX:IT
Rather than rubbish the part you've bought, keep an eye on it and see how it goes, you may get lucky!
VC :)
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