my engine would intermittently stall problem gradually got worse?

2002 DODGE TRUCK
380,000 MILES • 4.7L • V8 • 2WD • AUTOMATIC
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MRBRYANB
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Ok so I replaced the transmission and shortly after that my engine would intermittently stall.the problem gradually got worse with failing gauges and then no start unless the gauges were working until eventually they no longer would work either.replaced the ecu had it programmed at the dealership. But still no horn no wipers NO LIGHTS WHATSO EVER FLASHERS INCLUDED.alternator doesn't charge either the.only light is have is the 3rd brake light that's it .also the dash lights come on when the key is turned on even when they are supposed to be off and my truck is also misfiring on a cylinder or two .the crazy thing is on the way to the dealership for the programming it all of a sudden the engine ran like it was supposed to no misfire running great .until I get there turned it off and when I started it again back to the same things.. IVE CHAMGED THE FCM AS WELL AND STILL NO LIGHTS NO NO THING THE ONLY THING THAY IT DID DO WHEN I HAD THE ECU PROGRAMMD WAS TURN THE NOISY DINGING OFF. EVERYTHING ELSE IS STILL AS IT WAS.Help!!!
Apr 5, 2026 at 12:47 PM
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STRAILER
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O yes, the classic ignition switch problem, this is common when the ignition switch goes out, I would replaced it with a new unit which should fix the problem. The switch is inside the column. Check out the images (below). Let us know how it goes, Ken
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Apr 6, 2026 at 9:24 AM
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That kind of intermittent stalling that gets worse over time usually points to a component gradually failing rather than a sudden issue. Common causes include a failing fuel pump, clogged fuel filter, dirty or faulty mass airflow sensor, or even a bad crankshaft position sensor. It could also be related to ignition components like worn spark plugs or coils, or something as simple as a vacuum leak.

If the problem has progressed, I’d recommend scanning for trouble codes first, even if the check engine light isn’t always on. From there, inspect fuel delivery and air intake systems, since those are often the culprits.

If you’re looking to replace or upgrade engine components, you can check out: https://engineeredracing.ca/category/engine-parts
Apr 7, 2026 at 12:03 AM
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STRAILER
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This sounds like an Ai answer, the ignition switch can definitely cause the engine to shut down along with the other electrical problems you mentioned at the same time. The connections inside heat up and fail. When the issue happens feel the switch to see if it is warm. This is a sign of failure.
Apr 7, 2026 at 10:15 AM