Question about Chevrolet TrailBlazer
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Posted on Jan 02, 2017
Have you had the battery checked..Cold weather is the worst enemy on a battery. They work fine in summer but cold will get em.
Posted on Nov 05, 2008
Well, could be many things, but first and easiest, check the dist. cap and rotor, and all the plug connections. Any moisture will freeze and short out the ignition system. Also change the fuel filter. If you get the slightest moisture in the fuel it will lock up the filter when the water freezes. Could be a relay, probably "engine relay" that sticks when it gets too cold.
Some starting points I hope.
Posted on Mar 06, 2009
It could be the cold air temperature sensor more or less works like a choke also it could be the fuel pump or fuel filter Is clogged also could be corroded or cracked vacuum Lines causing it to **** air you will need to determine if gas is getting the fuel bar
Posted on Nov 03, 2009
Testimonial: "sounds right i'll check tomorrow"
SOURCE: 2002 ford explorer sport won't
This sounds like a signal for the cold start routine is not reaching the brain. Your SUV uses water temperature to tell the brain the engine is cold. There are 2 sensors for the water, one for the gauge and one for the computer.
The signal makes the fuel mix rich and speeds up the idle. It works like a choke. Go to Autozone or Oreillys and get a free scan. You should ask about a starter draw test too. When they scan your SUV they can show you where the sensor you need is located. Just change it and the next cold start will be either good or still bad.
If the start is still bad you have to look for other reasons. The fuel pressure is one thing to measure and this will require a pressure gauge. Check the Intake manifold for vacuum leaks after the engine is running with a water spray bottle on the seams of the part. A leak will affect the RPM. The colder weather can cause a marginal leak into a bigger problem making leak. Then when the engine does run, the heat expands all the parts and the motor runs great. But cold it does not draw the fuel in properly and starts poorly.
Hopefully your problem will be solved with my first solution. Would be interested in what you found.
Posted on Dec 03, 2010
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