Hey Listees - Problem: My 84 westy won't warm start easily. I may have jumped the gun on my last email on the subject of my van's warm start problem. Joel also mentioned the following: SCENARIO #1 "if it's the sensor, you should notice that the bus idles badly and wants to stumble and die at red lights after it warms up (if you keep running after cranking when cold). similar symptoms if the valve is stuck open ... the sensor is telling the computer to give more gas (like the old chokes, on carburetors). the valve is allowing extra air for that extra gas." Well, my van doesn't stumble at idle. In fact it sometimes idles normally, often idles high, and on occasion does its own sort of revving of high to low and back as if a ghost were revving the engine. So, does this would seem to rule out the above. SCENARIO #2 "it could also be a leaking injector or bad fuel pressure regulator ... these could be allowing gas to leak into the cylinders after you shut off the engine, which would make it very hard to start again (but the bus would run ok, as long as you didn't shut it off)." Well, this sounds like a likely scenario except that I have tested it by starting and cutting the engine in several successions and it starts each time while it's cold. So it would seem this scenario is also ruled out? Joel's conclusion: "so if it's idling badly or stumbling, check the sensor or the valve. if it's running ok, but just not starting when warm, check the injectors and the fuel pressure regulator." Hmm, according to the conclusion it sounds more like injectors and/or the fuel pressure regulator, right? Does the following help to clarify the problem? John Baker's little short cut to the solution works most of the time: " I have discovered a way to help with those warm starts until I can get around to replacing that sensor. When your engine is warm, turn the key "on" (injectors injecting) but don't engage the starter, and wait about 15 seconds in this position before turning the motor over. After this time, I turn and give one little push on the accelator pedal as I engage the starter and it generally fires right up!" Thanks and I hope this all makes sense! Les ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/. |
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