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Timing belt broke bent 8 valves had head and valve job, new fuel pump, new crank trigger sensor, new cam positioning sensor. gas getting to injectors but not starting turns over but will not start. Sorry this is on a 2002 Kia Spectra GSX 1.8L 16 valve DOHC
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crank angle sensor, Crank position sensor ,reads the position in degrees of the crankshaft. When the sensor reads a set point on the crankshaft it sends a signal to the ECM(CPU) program which then triggers the spark for that positioned cylinder. It also triggers the injector to squirt. Without it the CPU will not know when to set the spark or injector so nothing works.It is constant for all ECM controlled engines regardless. Further the cam shaft position sensor sends a signal to the cpu telling it that the valves are in the correct position for spark,fuel. When the cam belt/chain breaks there is no position regestired so the spark and fuel are shut off
Yes -- the motor is identified as an interference engine and that means in the event of belt failure there will be damaged valves from hitting the pistons. IT is a matter of removing the head and replacing the bent valves . There should be not other damage to the engine . The job in an accredited shop will be around $1000 dollars which should include valves -head gasket kit-new belt- idlers -hydraulic tensioner and cam and crank seals and labour
Did you remember to reconnect your Cam Position Sensor after putting it all back together? One tooth off shouldn't have bent a valve (but pressure checking cylinder will answer that). Did you check TDC once the belt is tight?
Have you checked the cam sensor? Also does that vehicle have a "throttle position sensor"? Some cars use both MAP and MAF sensors, not sure about your particular vehicle but if it is one of those, cleaning the MAF wouldn't hurt. Good luck.
Please use a different shop in the future. The fact is if that timing belt broke while the motor was running you most definitely bent a valve or two if not all of them. The 300M didn't use no contact or lock up valves which would have locked them up out of the way when the belt broke. The mechanic that did the repair should have had the head pressure tested and inspected all of the valves. It is possible the problem you are having is a few valves not operating properly however a more likely source is going to be a Crank position sensor or Cam position sensor that is damaged or the internal anti-knock assembly isn't in time with the rest of the motor. There is a slim possibility that when he did the repair he removed the motor and then failed to get it positioned correctly in the motor mounts or possibly didn't get the base cross connecting plate put up correctly as far as being tightened and torqued in. Do a compression check and leak down test on the cylinders to make sure you don't have a leaking valve then start looking at the other items. I seriously recommend you use a different shop than the one that did the timing belt because at this point there should be no question about the valves or rings in that motor. Since the motor was opened up they should have replaced the rings and checked the valves before they ever put it back together.
Are you sure you have correct timing? its definetly a fule problem, if timing is good then turn your key to the on position and try to listin for the fule pump to prime. While the key is in on position go to fuel rail, there is a valve on fule rail called sharader valve. Get a small screw driver and press valve in to check if car has fule pressure. if pressure is present then it is incorrect timing or possible bad cam sensor.
Sounds like cam belt has snapped. If it broke while starting, could be cheap fix...new belt. Worst case: cylinder head off for overhaul...bent valves / pistons replaced.
Check
timing marks are correct. Cam is in time with crank.
proper spark plug wiring sequence.
look at actual timing.
Car does not have to be running to check the actual timing. Hook up timing light and crank motor. Light should flash so you can look at timing marks to see if you are "Close enough" to fire off.
If cam and crank are not in time, you may have bent the valves again. Check compression. It will tell you the answer.
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