QuestionNO START--NO SPARK-- TIMING BELT,CAP, ROTOR,BATTERY,FUEL PUMP, STARTER ALL FINE--DROVE HOME ONE WINDY,RAINY DAY AND NEXT MORNING ALL AT ONCE NO MORE START---ANY COMMON REMEDIES?
AnswerHi Tommy,
The standard approach begins with two actions. One is to read out the engine controller for the presence of fault codes that would give a clue. I'll tell you how to do that later.
The other is to check the primary circuit of the spark coil to see whether and how long it is being energized during a 5 second crank. You need a voltmeter or neon glow lamp to do that. Just attach one lead to the + post of the spark coil and the other lead to the - post of the battery or anyother grounded metal part on the engine. Then if you can watch the meter (or light) crank the engine and see if you get 12V power for a full 5 seconds of cranking, 1-2 seconds, or not at all. (If you can't observe from the driver's seat have a helper crank the engine for 5 seconds.) If you get the full 5 seconds then the coil or connection to the engine controller is bad, if you get it for 1-2 seconds then it is probably the ignition signal from the distributor that has been lost, and if you don't get any power at all it is either the autoshutdown relay or the controller itself that is bad.
But let me know, before you jump to any conclusion, because there are futher tests to do, depending upon which response you get.
To read out the codes, which are two digit numbers, just turn the ignition switch
"on-off-on-off-on" within a 5 second period.
Then
watch to see the check engine light to begin to flash, followed by a pause then more flashes, pause, etc. Count the
number of flashes before each pause and write down these
numbers as they come. (Repeat the readout to make sure that you have the numbers correctly).
The last two groups of flaches will always be five
flashes each, which is the number 55 (because the codes
are all two digit numbers), and 55 means the readout
is completed. Then going over all the numbers you have
written down, group them in pairs in the order that they came out to form the other
two-digit numbers that constitute the "fault' codes for your
present situation.
Write back and tell me what you found and I'll give you further suggestions.
Roland
