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1990 ford ranger wont start


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mbwells
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Mar 13, 2015, 6:01 PM

Post #1 of 9 (2715 views)
1990 ford ranger wont start Sign In

1990 ford ranger 2.3L dura spark 4 cyl. fuel injected. sometimes wont start. it will try to backfire when turning over. has exploded 2 different mufflers. after it sits 2 or 3 days it starts. seems to do it worse when its raining or been raining. replaced oxygen sensor


Hammer Time
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Mar 13, 2015, 6:21 PM

Post #2 of 9 (2711 views)
Re: 1990 ford ranger wont start Sign In

The backfiring tends to pint to an ignition/spark problem. It's getting plenty of fuel. That's what is fueling the backfire;



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Tom Greenleaf
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Mar 14, 2015, 5:21 AM

Post #3 of 9 (2685 views)
Re: 1990 ford ranger wont start Sign In

Just ideas: OK - I think they still sell mufflers that would be warranted for an burst like that - check.
If you really know "wet" conditions are highly involved all parts (secondaries) that carry high voltage are suspect especially ones that can leak to another spark plug including wires, distributor (or packs if equipped) cap, rotor, coil etc.


Many you can find or cause when it wouldn't happen by misting parts one at a time with slightly salted spray of water - I use plain window cleaner works great less mess for me.


Some you can see spark jump some not but if it causes the issue that would be the area or item. Didn't look but think a cap and rotor set up if so blow it out carefully with compressed air inside. Not the most common but can just get dusty and dirty inside and that dirt misdirect a spark, then the backfire,


T



Hammer Time
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Mar 14, 2015, 5:26 AM

Post #4 of 9 (2682 views)
Re: 1990 ford ranger wont start Sign In

You're going to be looking for something that is causing the spark to totally shut off and then suddenly trigger a spark. The fuel is continuing to build up without spark and then suddenly there is a random spark that ignites it to cause the backfire. Coils and/or ignition modules would be the number one suspects.



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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.



Discretesignals
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Mar 14, 2015, 12:34 PM

Post #5 of 9 (2673 views)
Re: 1990 ford ranger wont start Sign In


Quote
1990 ford ranger 2.3L dura spark 4 cyl.


Duraspark? Is this some engine swap that was done? Duraspark went bye bye when EEC IV came out back in the 80's.

That one should be DIS.





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Hammer Time
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Mar 14, 2015, 12:56 PM

Post #6 of 9 (2669 views)
Re: 1990 ford ranger wont start Sign In


Quote
Duraspark? Is this some engine swap that was done? Duraspark went bye bye when EEC IV came out back in the 80's.


I'm betting he just thought is was a cool name so he had to assume he had one.



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(This post was edited by Hammer Time on Mar 14, 2015, 12:57 PM)


Discretesignals
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Mar 14, 2015, 1:06 PM

Post #7 of 9 (2666 views)
Re: 1990 ford ranger wont start Sign In

Better watch out. My Ranger has Duraspark and VTEC. If it wasn't for the Vortec traction control system, i'd be roasting the tires off.





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Hammer Time
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Mar 14, 2015, 1:09 PM

Post #8 of 9 (2663 views)
Re: 1990 ford ranger wont start Sign In

Yeah, everybody seems to ave one of those Vortec thingies.



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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.



mbwells
New User

Mar 14, 2015, 6:24 PM

Post #9 of 9 (2649 views)
Re: 1990 ford ranger wont start Sign In

THANKS FOR THE ENGINE INFO. SOMEONE TOLD ME IT WAS A DURA SPARK BECAUSE OF THE 2 SPARK PLUGS PER CYL.






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