NO Spark 90 Ranger


blumoon

10+ Year Member

Joined
Jan 25, 2011
Messages
8
Points
1,501
City
Northern tip of Idaho
Vehicle Year
1985
Transmission
Manual
New here, but from what i have read, some of you guys are smarter then some rocket scientists i'v seen.:icon_idea: I have been playing with fords for about 35 years, old skool style, not to up or want to be to up on the electronic stuff.
I got ahold of a 1990 ranger 4.0 with a 2 inch lift and 35'' rubber and the junker of a tranny the A4LD.:bawling: It has been setting for about 4 years and we pulled it up to get it running.I changed the fuel filter{ it still had pressure in the line:shok:} changed plugs, alternator was bad, and gave it a worl, lots of fuel no spark.had a guy put his elect. tester gizzy on it, said the coil pack was bad, ok changed it, a wad of money later :icon_surprised:still no spark, had another shop tell me no signal from the computer to tell his tester whats wrong. Then they suggested changing the ied, if still no spark then the crank senser, then the main computer.:icon_confused:Wait a minute, there is got to be a better way to test things before you just go changing stuff. Help please::icon_cheers:
 
there isn't a lot to the spark system on a 4.0, there's the crank sensor, coil and computer.

was the truck running when parked? if so, I would check the crank sensor wires for signs of mouse chewing...
 
thanks truck was running when parked, tranny was pouring oil all over the ground, thats why they parked it. Found out it was a cooler line they made from fuel hose and forgot to clamp it to the old tube.
 

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