Question about 1991 Ford Thunderbird

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Electicail fail 93 cougar no spark. changed ignition module , coil , dist. still no spark, but sometimes will start mostly not. 4.6L

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Your timing belt needs replaced

Posted on Jan 03, 2009

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I got no spark won't start. 93 1500 Chevy truck 4.3 motor


How long since a tune-up?
Check for applicable trouble codes, if there are any? Your obd 1, you should be able to check for some codes, if the mil still works.
Check primary voltage at the coil, pink wire, key on. Use a test light to check for voltage.
The spark plugs--plug wires--dist cap and rotor all good? Does the rotor turn when you crank it? If you take coil wire loose from distributor cap and hold close to engine ground, have helper crank it, do you see a spark jump? I don't know what testing you have done?
With bypass ignition it's the ignition module that controls spark during cranking. With the coil itself, key on, should be voltage on both sides, if only one side, the coil is faulty. The ground for the coil should pulse, with engine cranking. I'm sure I've left something out? You need to do some testing.

Apr 17, 2016 | Cars & Trucks

1 Answer

Engine won't start. Getting no spark.


Have you check to see if the timing on the car is right?

Nov 08, 2013 | Cars & Trucks

2 Answers

Will turn over but not start have replaced plugs wires dist.cap rotor ignition module


Do you have spark??? if so, check fuel pressure, these trucks must have 60 psi to run, 50 psi will not work,.

Feb 06, 2010 | 1999 GMC Sierra

1 Answer

99 astro wont start


The most common repair on your vehicle to correct a no spark condition is first.....the ignition module in the distributor......2nd....the dist pickup.....3rd....coil.

Sep 30, 2009 | 2005 Chevrolet Aveo

1 Answer

1990 K5 Blazer DIED(Electrical?)?


There may be no injector pulse if the computor does not see a RPM signal.
There will be no spark if the ignition module does not see a dist pulse from the dist pickup.......a RPM signal.
Because you do not have both ......I would suggest to check/change the dist pick up.
Follow the wires from the ignition module inside the dist to the pickup which is also inside the dist.
If it is just a bad dist pickup....keep all your old parts as good spares.
Also...is the dist turning? to provide a RPM signal?
You will have to remove the dist to change the pick-up.....mark your timing locations......"rotor position" and "dist body location"before removal.
A quick test before installing the "repaired dist" .....plug it in the the truck wiring and turn on the key....DO NOT CRANK THE ENGINE OR YOU WILL LOSE YOUR DIST ROTOR CORRECT POSITION......as you spin the dist by hand .....the injectors should spray.

Aug 23, 2009 | 1989 Chevrolet S-10 Blazer

2 Answers

'93 Blazer will not start, turns over, but no spark...


could be the ignition module like the other guy said, but I had one that did the same thing and it was the pick-up coil on the bottom of the distributor shaft. a relatively simple fix, but best to let a mechanic do it if you've never done it.

Aug 13, 2009 | 1993 Chevrolet S-10 Blazer

3 Answers

1990 Jeep YJ 6 cyc. Won't Start---No Spark From Coil


It would be great if you could find the Ignition Control Module!!! From my experience on my Jeep...90 YJ 4.2 liter carb. it does not have one...Computer controlled only...

May 17, 2009 | 1990 Jeep Wrangler

1 Answer

93 saturn


BAD GROUND FOR THE COIL, THESE CARS ARE TERRIBLE FOR GROUNDS.

Dec 19, 2008 | 1992 Saturn SL2

1 Answer

1995 ford probe


Since it's turning over and you smell gas you probably have a spark proble. Check spark at plugwires and work back to the coil by disconnecting the smaller 3 prong connector at the distributor. Check for 520-580 ohms between the 2 outer prongs on the dist. side.  If that is good pull the cap and inspect.  Check resistance from the inner of the 3 prongs and the coil by probing the hole where the cap penetrates the high tension lead.  No resistance = Bad coil. Replace dist.  NEXT Remove dist. marking the rotor position and the housing position in order to replace it the same spot.  Tun th rotor and you should hear 6 clicks per rotation. this is the injectores taking spark. If none then CK1 (or camshaft sensor) is likely bad. refer to manual for in depth and double checking the routine. A Disty is aroung $200-250  or 1,000 at dealer. Even after all these checks there is no guarantee as the probe is known to have some really tough spark issues. Particularly the 93. This info is for 93 2.5L 6cyl., but translates well for most any car. ICM (ignition control module) cannot be tested unless your parts house has a tester. Th eprobes have internal icm and coil (in the dist.).
 Remember. You can jumper from gnd and 10 pin too pull codes. 
 All this can be found in a 15$ Haynes manual which pays for itself the first time you have issues.  Feel Free t oe-mail me - I have gone Waayyay past this with my 93.    Bayside@operamail.com

Oct 25, 2008 | 1995 Ford Probe

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