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jacklikesbeans
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May 12, 2012, 5:39 PM
Post #1 of 36
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No spark 2002 windstar
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2002
Ford
Windstar
3.8l
170,000 miles
My engine was misfiring on cylinder 2 so I replaced all the spark plugs and also ran some seafoam through it. It ran well for a few days then began dieing when the idle dropped at random times until it all together quit at a stop light. I also burned up my starter trying to get it going at the light but I replaced that. I have replaced the following things and still get no spark to plugs.
coil (old one tested bad with mulimeter
crankshaft position sensor (Vehicle used to act sluggish in rain
ignition switch
Any help would be hugely appreciated!
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Hammer Time
Ultimate Carjunky
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May 12, 2012, 6:20 PM
Post #2 of 36
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Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.
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jacklikesbeans
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May 12, 2012, 6:28 PM
Post #3 of 36
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Thanks for the response! I can hear the fuel cut in and cut off. When I remove the plug can smell gas strong. I don't have a fuel pressure gauge as well.
Would low fuel pressure cause no spark?
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Hammer Time
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May 12, 2012, 6:31 PM
Post #4 of 36
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Did you actually use a spark tester to test for spark?
How about injector pulse? Do you have that?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on May 12, 2012, 6:34 PM)
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jacklikesbeans
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May 12, 2012, 7:05 PM
Post #5 of 36
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For testing the spark plugs I grounded the plug and watched for spark and then used a test light in the spark plug wire and got no spark.
I haven't checked for injector pulse but I'm reading up on that now and will try
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Hammer Time
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May 12, 2012, 7:09 PM
Post #6 of 36
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You can't test a 30K volt spark with a 12v test light. You need to use an adjustable spark tester to find out just how strong your spark is when you have one.
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jacklikesbeans
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May 12, 2012, 7:49 PM
Post #7 of 36
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Injector pulse was good. I borrowed a tester from a neighbor and confirmed no spark.
Any ideas?
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Hammer Time
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May 12, 2012, 7:55 PM
Post #8 of 36
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See if you have power on the red wire going into the coil.
If you do, get a couple jumper wires and your noid light and hook the noid light between the red wire and the DB/LG wire and crank to see if you have pulse there.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jacklikesbeans
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May 12, 2012, 8:44 PM
Post #9 of 36
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I do have power to the coil. I couldn't get a noid light also not sure what "DB/LB wire is.
Thanks for the help!
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Hammer Time
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May 12, 2012, 8:46 PM
Post #10 of 36
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If you don't have a noid light how did you test for injector pulse?
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jacklikesbeans
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May 12, 2012, 10:24 PM
Post #11 of 36
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I took out the electrical plug to the injectors (all 6) and placed the ground to the battery and positive to the injectors electrical plug.
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Hammer Time
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May 12, 2012, 10:28 PM
Post #12 of 36
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You didn't test anything that way. I told you that you had to use a noid light for a reason. We still don't know if you have in injector pulse or not and we are probably just wasting out time.
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jacklikesbeans
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May 12, 2012, 10:45 PM
Post #13 of 36
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Sorry, I didn't see anything posted earlier about needing a noid light to check the injector pulse. When I looked it up online that it said to use a multimeter but I see where that wouldn't be able to keep up the injectors firing
Doesn't look like I would be able to get a noid light anytime soon
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Hammer Time
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May 12, 2012, 11:27 PM
Post #14 of 36
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You're right. I didn't spell it out here like I usually do. You can buy a noid light for under $10 and using anything else will damage the computer. Plug it into the injector plug and crank the engine. If it flashes, you are good.
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jacklikesbeans
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May 14, 2012, 8:34 PM
Post #15 of 36
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Got me a noid light and all 6 injectors blinked. Any other ideas?
thanks!
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Hammer Time
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May 14, 2012, 8:43 PM
Post #16 of 36
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These aren't ideas. I am systematically isolating the area with the problem.
OK, not use your noid light for the same type of tests on the wires I identified earlier at the coil.
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jacklikesbeans
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May 14, 2012, 9:34 PM
Post #17 of 36
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Can you tell me what you mean by DB/LG wire?
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Hammer Time
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May 14, 2012, 9:35 PM
Post #18 of 36
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A wire that is dark blue with light green stripe.
You should unplug the coil when testing the wires.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on May 14, 2012, 9:37 PM)
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jacklikesbeans
User
May 15, 2012, 10:26 AM
Post #19 of 36
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I had to charge my battery. On my coil plug I didn't have a dark blue or light green stripe wire. Mine are red, pink with stripe, blue, red stripe.
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Hammer Time
Ultimate Carjunky
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May 15, 2012, 10:34 AM
Post #20 of 36
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I'm sure the one you think is only blue will be the one we're looking for because the other colors match the other feeds. Actually you can test the red with any one of those. I just randomly picked one of the 3 circuits to test. You should get pulse from any of the 3 when cranking.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Hammer Time
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May 15, 2012, 10:59 AM
Post #22 of 36
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If you cranked the engine with the light attached between the red and any one of the other 3 and it didn't flash, that point to a bad PCM or the wiring in between but I have never seen one act that way so may absolutely sure that you performed all the testing correctly. For a PCM to give you injector pulse and not ignition pulse is pretty unusual.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jacklikesbeans
User
May 15, 2012, 11:05 AM
Post #23 of 36
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I will explain the way I tested it. I'm using a noid light set of six. 1 fit in my red and pink light, another fit in my red and blue, and so on and so on. Could I take my PCM to a dealer and have it tested?
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Hammer Time
Ultimate Carjunky
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May 15, 2012, 11:25 AM
Post #24 of 36
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No, there is no way to test a PCM. The way you diagnose one is by eliminating everything else.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jacklikesbeans
User
May 15, 2012, 4:38 PM
Post #25 of 36
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I've had little luck locating a pcm that I could get today. I changed the crankshaft position sensor but not the camshaft position sensor earlier. Could a bad camshaft sensor cause it not to fire?
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