89' k2500 cold start
izzy101
02-04-2004, 12:28 PM
???????Truck runs real rough only when starting below 32 degrees(Starts fine otherwise).if you put it in gear when it's happening it won't go faster then 2 mph.once warms up truck runs great. Changed temp sensor, injector sensors, still happening. Anybody seen this before??
RABarrett
02-04-2004, 02:45 PM
You might check the fuel pressure. As these pumps age, the delivered pressure drops, causing a lean condition only on heavy demand. The colder the engine, the more fuel is requested by the computer. This causes a lean condition until the demand drops off, as the engine warms. Ray
izzy101
02-05-2004, 08:15 AM
Thanks, I'll definitely try that.
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