New engine no spark
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Junior User
Joined: Mar 2013
Posts: 51
Likes: 0
From: mt airy, georgia
New engine no spark
92 f150 5.0 automatic, just put a 5.0 from a 91 in my 92 truck. Used all my original wiring, distributor, coil, starter, all work and are in good condition. Truck has no spark by turning the key. Lights come on and can hear fuel pump prime but engine doesn't make a sound, starter doesn't turn over. But turns over when I cross the solenoid. Wire connections are good, grounds are good. What should I check? Sensor somewhere?
Logistics Pro
Joined: Mar 2005
Posts: 4,698
Likes: 47
From: Mexico, Missouri
Check grounds and check that TFI module IS firmly plugged in. Check pigtail that activates the coil.
It not turning over with key, but with solenoid sounds like the transmission is actually in Neutral. Check position of shift lever on column.
It not turning over with key, but with solenoid sounds like the transmission is actually in Neutral. Check position of shift lever on column.
Post Fiend
Joined: Nov 2005
Posts: 7,437
Likes: 4
From: Charles Town, W bygod Va
Your post is confusing. No spark would mean the starter is turning the engine over and the ignition system is not sending a spark to the spark plugs. Not cranking, the starter is not turning the engine over. I believe you mean it is not cranking. Try moving the shift lever around while holding the key in start. Look around under the hood to see if you forgot to hook something up, like the one near the master cylinder that goes to the nuetral start switch.
Lead Driver
Joined: May 2011
Posts: 5,772
Likes: 441
so you've determined you have no spark when turning key, at the same time the motor is not turning over?
pretty confusing.
fix the solenoid issue, get the motor to turn over with key, chase down no-spark issue (if there is one)
pretty confusing.
fix the solenoid issue, get the motor to turn over with key, chase down no-spark issue (if there is one)
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