When you say not start, do you mean doesn't crank or does nothing when the key is turned? BClear. There are several things; let me start with some simple ideas. First, always describe the details associated w a problem: The smells, the sounds, the circumstances (only in cold wx, only w the AC on, etc), that makes diagnosis much easier. Common starting problems: Too much load on the electrical system. Caused by faulty Alternator, old spark plugs or spark cables. Try turning off extra accessories and see if this helps. Bad fuel pump or clogged filter. Failing EGR or PCV valve. Many people overlook the (usually) simple task of changing the $3 part, the PCV valve; this can affect starting, especially in cold weather and will allow you to start the car, but then it will die. EGR is similar, but affects more than just starting. The PCV tends to be ok after warmup. Everything on a car works together: I've seen a simple OIL CHANGE or AIR FILTER CHANGE, or fuel filter change make a car start better. Also there could always be a malfunctioning sensor, you can test this w a mechanic's help, or buy buying an OBDII code-checker at a store. Hope it helps! Titus 3:5
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