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Welcome to SportTrac.Org
Off Topic Discussion
wifes Jeep cold start
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<blockquote data-quote="Kevin Palmer" data-source="post: 994155" data-attributes="member: 54263"><p>Though you do not have a choke in the traditional means, you do have items that equate to a choke.</p><p></p><p></p><p></p><p>The Coolant Temp Sensor and Air Charge Temperature Sensor both affect the fuel delivery to the vehicle.</p><p></p><p></p><p></p><p>If you have a sensor that is defective but within specs, your ECM (Computer/Brain) will think the engine is warm or hot. If this is the case, it will NOT inject enough fuel to start the engine.</p><p></p><p></p><p></p><p>Plug into a scanner and see what the sensors THINK the temperature it. Neither should be above the ambient temperature. You can rent one or pay a garage. The concern is, if you drive it to a garage, the engine will in fact be warm and render the test useless.</p><p></p><p></p><p></p><p>You need to test this in the morning before you have run the engine as this is when the issue is a concern...</p></blockquote><p></p>
[QUOTE="Kevin Palmer, post: 994155, member: 54263"] Though you do not have a choke in the traditional means, you do have items that equate to a choke. The Coolant Temp Sensor and Air Charge Temperature Sensor both affect the fuel delivery to the vehicle. If you have a sensor that is defective but within specs, your ECM (Computer/Brain) will think the engine is warm or hot. If this is the case, it will NOT inject enough fuel to start the engine. Plug into a scanner and see what the sensors THINK the temperature it. Neither should be above the ambient temperature. You can rent one or pay a garage. The concern is, if you drive it to a garage, the engine will in fact be warm and render the test useless. You need to test this in the morning before you have run the engine as this is when the issue is a concern... [/QUOTE]
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wifes Jeep cold start
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