Questionhi Roland i have a newyorker 1996 3,5l that wont start
hi my name is Robert and iam from Sweden! my wife was driving our newyorker. car just stop running . i have replaced cam and cranksensors but it will not start!
it has no spark still i can hear the fuel pump and it has fuel when i bleed the valve in the fuel rail please i need help
AnswerHi Robert,
Use your ignition key to get any fault codes read out from the engine controller memory.
"On-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. The check engine light will remain "on". Then watch the check engine light which should begin to flash-pause-flash-etc. Count the number of flashes before each pause. Then repeat to assure an accurate consistent count. Then group the counts in pairs in the order of appearance to form the 2-digit fault codes. The last count pair will always be 55 because that is the code for "end of readout".
Then go to www.allpar.com/fix/codes.html for a list of what the other code numbers mean. Then write back for advice. The codes are what you need to know to fix this sort of problem efficiently.
I would make sure that when the starter is cranking over that you have 12V on the dark green/orange wire at the alternator as that same wire is needed to power the spark coil pack primary windings. If not, then the fuel pump may not be running when you cranking, either (it will run for a second or so when you turn the key to run).
That would suggest that you may not have installed one or both of the sensors correctly. Did you press the tip of the new sensors (which should have had a paper spacer on their tips) against the surface of the metal that they "look" at? If not, then adjust them so they are both in contact, of course with the paper spacers still in place. Those spacers "sacrifice" themselves but leave the proper spacing afterwards. If you think you did that, then don't touch the sensors, unless you get new spacers to replace the sacrificed ones with. If you do have the 12V on the dark green/orange wire when cranking, then about the only other possibility is the coil pack has failed or that the engine controller is not pulsing the other three wires at the coil pack which is of course necessary to cause the sparks. If you do have the 12V then that suggests that there should be pulses coming out of the controller, You could check that by measuring for voltage pulsing on any one of the three other wires at the pack as you turn the engine over by hand via the bolt on the crankshaft pulley, with the key in the run position. Use a fine pin to penetrate through the insulation.
So give those ideas a try and let me know what you find.
Roland
