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s-10 won't start when its cold

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Old Apr 13, 2004 | 11:32 AM
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Question s-10 won't start when its cold

just like the title says, can't figure it out I did a complete tune up on the 2.2l 4cyl motor, but it still does it, in the morning when its cold it will try but will not turn over, but when I open the hood and take the intake air hose off the filter box and let it pull air freely, without the filter, it starts easily, but the filter is clean and there is nothing blocking the flow of air from the filter to the outside of the truck, I don't hear a vaccum leak or it isn't that loud at least, any thoughs, Thanks Josh
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Old Apr 15, 2004 | 10:26 AM
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So it cranks but doesn't start eh? If its TBI you may have leaky injectors and in order to get it to start, floor the gas pedal when you turn the key. This put the engine into "clear flood" mode and it should start if thats the problem. Let me know what kind of fuel system you have(carb, throttle body injection, or port injection) and I'll give you a better answer.

Joe

Last edited by CamaroJoe; Apr 15, 2004 at 10:31 AM.
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Old Apr 15, 2004 | 12:16 PM
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It says 2200 SFI on the top of the motor, I don't know if this is what your looking for, if not let me know, Thank you for your help
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Old Apr 15, 2004 | 01:47 PM
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SFI means sequential port fuel injection. Try pushing the gas to full when cranking anyway but I don't think thats the problem. It might be your cold start valve which gives more fuel to the engine to help with cold starts or something to do with your air or coolant temp sensors. I wish I could be of more help, but without seeing the problem for myself, its kinda hard to diagnose.

Joe
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Old Apr 16, 2004 | 03:15 AM
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Thanks for the help anyway
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