Bosch+en153+hot Better -

If your truck starts perfectly in the morning (cold) but refuses to start or cranks slowly when the engine is warm, you are dealing with a failure. This is a specific sub-topic of "bosch+en153+hot."

You cannot use the EN153 (or its modern W8AC equivalent) straight out of the box. You must gap it. bosch+en153+hot

If you install an EN153 in an engine that requires a colder plug (like a high-compression performance engine): If your truck starts perfectly in the morning