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gacrock

323i , hard warm start

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hey ,hi to all.... this is all new to me being my first forum .. any way long story short got lumbered with a 323i, e36, jap import, 210000ks ,97' auto, starts cold straight away, drives excellent , seems to have plenty power, stop for a short time or up to a few hours and wont start straight off - takes 2-3 good cranks sometimes easier than others . now ive read a bit about bmw having a probs with the nikalsil blocks , of which i think this is , so would it be low compression causing the warm start prob ???? doesnt seem to blow any smoke when driving, a little on start sometimes !!! . but a mate in the know said the bore can be worn in the the centre of the stroke/bore!!! or am i on the wrong track and is it a sensor saying engine still cold or something like that .... well thanks for listening hope some one out there can shed a little light on it . cheers PS(when i say 'got lumbered'im not saying i dont like bmw's - im just saying i may have bought a dud one, i bought this to replace the e30 we sold.)

Edited by gacrock

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I'd get it scanned first. Most sensors on the car are temperature sensitive. You need to do this first before anything else

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like glenn said get it scanned to be sure.

cam sensors fail often on these and make it hard to start ,

also sometimes intermitant fuel pump

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like glenn said get it scanned to be sure.

cam sensors fail often on these and make it hard to start ,

also sometimes intermitant fuel pump

thanx for reply. apparently its been scanned , and came up all good ... i found out through bmw dealer they presumed compression prob and it needed more investigation , this was after i bought it.. buyer beware eh... but i think it could still be a temp sensor or somthing because it starts cold straight away!!

Edited by gacrock

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thanx for reply. apparently its been scanned , and came up all good ... i found out through bmw dealer they presumed compression prob and it needed more investigation , this was after i bought it.. buyer beware eh... but i think it could still be a temp sensor or somthing because it starts cold straight away!!

sensor wire insulatin breaks up , wires short together and dont always show a fault as its not a open circuit fault.

unplug it and check the wires behind the rubber boot at the plug end

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sensor wire insulatin breaks up , wires short together and dont always show a fault as its not a open circuit fault.

unplug it and check the wires behind the rubber boot at the plug end

cheers ,i think there are two temp sensors, one 4 wire on block, one on radiator!!! will check this w/e.

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cheers ,i think there are two temp sensors, one 4 wire on block, one on radiator!!! will check this w/e.

no i mean camshaft sensor

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cam sensor seams to be all good ...

Edited by gacrock

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cam sensor seams to be all good ...

could a blocked catalytic convertor have any thing to do with it, it smells of sulfur when idling , or blocked fuel filter .????

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I suggest you spent a couple of grand on the car replacing all the above... then get it checked by someone who knows what they are doing with all the right gear

Edited by *Glenn*

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I suggest you spent a couple of grand on the car replacing all the above... then get it checked by someone who knows what they are doing with all the right gear

i have recently found out , it has been to a reputable bmw specialist dealership garage for this prob, it was also serviced ,wof etc... from them . they couldnt find prob with there diagnostic ... + haven't exactly got a couple of grand just lying round to chuck at it hoping that will do it - unless your offering a loan, ha . any way thanks for your feed back Edited by gacrock

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i have just had a scan done it came up with no codes ... how ever the cam sensor was reading -3.6 ... which the mechanic was not sure about . does any one know what the diag readings should be ??? thanks

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cam sensor seams to be all good ...

how did you test or look at that ???

try jk southern euro down your way

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how did you test or look at that ???

try jk southern euro down your way

Yea i will when i get to welly. i know john , hes good, i bought a g-box 4 my old e30 from him. My local mechanic put his diag computer (snap-on) on it - no faults - thought it would show up fault if cam sens no good ., also i know a guy working for bmw he said they had done diag on it a few months back , came up ok , so he thinks its compression in middle of bore??? i changed fuel filter last week, seems a bit better missis recons..? as i said first thing in morn starts first click ??? strange.... Edited by gacrock

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