Question about 2003 Kia Optima

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Car wont start. i changed the crank sensor i jump a tooth on the belt i fixed that

I have every thing lined up but the timing mark is not lined i need to install the alternator belt and power steering belt to start the car? please help

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A car will start and run without an alternator as long as the battery is is good condition and fully charged, but it is advisable to install the alternator belt, for if you do get the engine running, and while it's idling and you're checking out other bits and pieces, the engine is trickle charging the battery, and saves you time to install the belt later.

As for aligning the timing marks,,, they have to be aligned otherwise all sorts of problems will arise *IF for some fluke* the engine does start.

Posted on Mar 31, 2014

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Posted on Jan 02, 2017

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SOURCE: my alternator belt broke i

I am not sure where the crank position sensor is on your car but when the alternator belt broke on my Buick it trashed the crank sensor that is located next to the crank shaft pulley. The computer needs the crank senor to know the position of the crank shaft. If the sensor is bad the car will not start.

Posted on Nov 30, 2008

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SOURCE: replacing the alternator belt on 2001 kia spectra

Then you don't take anything off. There will be a spring loaded idler that tensions the serpentine belt. Take a socket or long 12 point wrench and attach to the center bolt of the tensioner, then rotate the idler wheel away from the belt, take the belt off. Slowly release the spring tension of the idler.
The 2nd belt should be set up the same way.

Posted on Jan 23, 2009

  • 27 Answers

SOURCE: MY fan belt broke now the car won't start.

if ur fan belt broke n ur water pump is run by it look out knock senser usually controls ur injector pulse so yea it will not start crank too cam no

Posted on May 25, 2009

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SOURCE: I can not figure out how to loosen the power

this one is tricky. Got this from

  1. Loosen bolt A , nut B and nut C
  2. Loosen tension adjusting bolt D
  3. Remove the drive belt

Posted on Sep 07, 2010

  • 4336 Answers

SOURCE: "JUMPED' time. Fixed. when started back up, it

This sounds like a low voltage issue. Check the system voltage while running, need 13.8 to 14.6 or so. Have the battery terminals cleaned and load test the battery. If the battery voltage drops too low during startup, that can cause the clock to loose it's time.

Posted on Nov 01, 2010

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Easy to diagnose, your engine has jumped time. Your timing belt or chain has jumped a tooth, or has broken, and your cam/crank are not matched up. (somebody has driven your car like a race car, full throttle from stop, etc) Line up timing marks, replace the belt or chain, and hope there is no more damage than that.

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Remove the t belt and reinstall it. Sounds like you were a half a tooth of on the cams wich would put you a tooth off on the crank. A lack of power makes sense with bad cam timing a s could,very well throw a miss. The misfire did not cause timing to jump

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Crank/cam misaligned timing can be due to a slack timing belt jumping a tooth on a cog. Check that the belt is tight and that the timing marks on belt align with the cam and crank pulley timing marks.

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On My 2005 Hyundai elantra 2.0 if I plug my cam sensor in it will turn over but won't start. If I unplug cam sensor it will start but car has a slow start on take off need help?

remove cam sensor clean it put it back in try the car if it still not right replace the sensor you may need to replace crank sensor as well when did it last have a timing belt replaced ?if its got over100 ,000 km on it and hasnt been done i would have it done if the belt brakes it can be fatal for the engine if its old then it may have jumped a tooth wich will put the cam timing out i would look there first turn the engine over by hand till the timing mark on the crank pulley is showing tdc remove the top half of the timing belt cover remove no1 spark plug use a suitable probe to check that no1 piston is at the top if so check the marks on the cam gears are in line with there marks if all marks line up the valve timing is ok

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After changing the idler bearing on my subaru legacy 91 wagon compression is low in the nr 1 and 2 cylinder the car wont start, timing was jumped as the bearing failed but appears to be correct as repaired

I assume that you mean the cambelt idler bearing.Ok if you are sure that the timing is correct for all cams(DOHC)?.Then the problem may be bent valves caused by the bearing collapse allowing the cams to go out of timing and cause valve strike.
I would recheck the timing,ensuring all marks line up precisely,the only one that should look 1/2 a tooth out is the crank.Genuine belts are always preferred for these as they have all the markings on the belt to align all the cams and crank,some other suppliers do not have this
I hope that this helps you,or get back to me with your findings.

Mar 17, 2011 | 1991 Subaru Legacy

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98 Taurus P0340 code still present after replacing camshaft sensor and synchronizer. Car not starting all the time. I do not see the spark when car will not start. Then replaced the crank sensor. Still...

all ways turn the motor over a few times and recheck timing marks a slack belt can put it a tooth out, if the code is back it means the fault is still there, did they remove the code and test drive if so the fault is not fixed.

Mar 31, 2017 | 1998 Ford Taurus

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Timing marks and aligning timing belt

the marks for th cams are on the tin stuff behind the gears study it for a bit and nyoull see them the mark for the crank pully is on the case onthe bottom of the crank pully just of to one side

Feb 27, 2010 | 1995 Nissan Pathfinder

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I have just replaced the timing belt and made sure all timing marks are in line and the car wont start only turns over with occasional "hiccup" chilton's manual doesnt give me any hints where to retrace my...

If your marks are all accurate, then the only thing you could have done wrong was that you werent at TOP DEAD CENTRE when you replaced the belt... Oh another thing, that is common are you sure you didnt jump a tooth while putting it back on, meaning your timing is out by a single tooth... How accurate were you with the marks etc... Good luck...

Jan 28, 2010 | 1995 Subaru Legacy

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