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∙ 14y agoim guessing you changed the cap and rotor after the incident so it should be clean and dry i would double check all your spark plug wires if you are leaking spark thru a wire it could be transfering to another plug wire firing a cylinder off at the wrong time. if you want to blame the icm (the points right?) i would make sure they look nice and clean and no excessive movement not to mention the shaft it is on
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∙ 14y agoyour timing could be off causing it to advance or retard the timing when it doesnt need to, does it run well once it is started, also be careful with backfires if it backfires part way through the compression stroke you can damage your piston and connecting rod.
Most likely it's a vacuum leak.
Your 1987 Astro might go full throttle when the engine is started because the throttle is sticking. This could also be a problem with the starter or the ignition hanging during the start.
stuck throttle butterfly plate
Yes
Clean the throttle position sensor and throttle plate, then use electrical contact cleaner to clean the air flow sensor at the air filter.
It changed becuz it became bigger with more people
Gandalf lit pine cones on fire and threw them at the wargs. The goblins took the fire and fed it so that it started to burn the trees they were in.
That is not realy a question, can you refrase it some how??
Throttle plate stuck Control cable bound? Throttle body assembly?
"Backfire" and "misfire" are two distinct engine-related issues that can occur in internal combustion engines. Let's understand the difference between the two: Backfire: Backfire is a situation where the combustion process in the engine's cylinders occurs at an unexpected time or place. Instead of the normal progression of combustion from the intake stroke to the power stroke, unburnt fuel or exhaust gases ignite in the intake manifold or the exhaust system. This results in a sudden and loud popping or banging noise. Causes of Backfire: Timing issues: Incorrect ignition timing can lead to fuel igniting at the wrong time. Fuel-air mixture: A too-rich or too-lean fuel-air mixture can cause backfires. Faulty exhaust system: A damaged or leaking exhaust system may allow exhaust gases to ignite inappropriately. Backfires can be harmful to the engine and should be addressed promptly to prevent damage. Misfire: Misfire occurs when one or more cylinders in the engine fail to ignite the air-fuel mixture during the combustion process. As a result, the engine skips the power stroke in those cylinders, leading to a loss of power, rough idling, and potentially increased exhaust emissions. Causes of Misfire: Ignition problems: Faulty spark plugs, ignition coils, or ignition leads can prevent proper ignition. Fuel delivery issues: Problems with fuel injectors or fuel pressure can lead to inadequate fuel supply. Compression problems: Issues with cylinder compression, such as worn piston rings or valves, can cause misfires. Misfires can be intermittent or persistent, and diagnosing the underlying cause is essential to prevent further engine damage and restore normal engine operation.
sheep