Won't start after sitting yesterday and lastnight in cold

SOURCE: What is wrong with my explorer if it cranks but

tammyspenton, This problem could be caused by a number of things, but the first thing that comes to mind is that you have a TPS (Throttle Position Sensor) or associated wiring problem. Seeing that it does not react when you push the pedal to the floor. You may have a bad sensor that has put your vehicles computer into limp mode and this will have to be replaced before it will operate normaly again. Good luck with this.

SOURCE: front right side hit . replaced concerter and

The new 2010 Fusion has what Ford calls, "one touch" start. If you turn the key to the start position and let go, the starter continues to turn. The ECM takes over the starting process and monitors the number of times the crankshaft rotates as it adds fuel and ignition for the engine to start. On 2010 Fusion's built before August 2009, there is a problem with the starting process. On occasion, the starter will turn the engine, but the engine will not start. The starter will not time out and the only way to stop the starter is to turn the key to the "off" position. TSB 09-19-1 is supposed to take care of the issue by replacing the ground cable with one that has a capacitor in it. Fusion owners with the no-start/intermittent start issue can go to their dealers with the TSB. I have tried to write down some simple tips that may help you to find out why your car won't start. These tips may also prevent you from being overcharged by dishonest mechanics - you will often be charged more at a garage if you look unfamiliar with the car mechanical aspects.
It's frustrating when your car won't start - this happened at least once to most of the drivers. I had situations when my car won't start many times. But no need to panic. The process that goes on since the moment you took the keys out of your pocket to the point where the engine is running is a fairly simple one and it involves few steps.

The engine computer uses the signals from the crankshaft and camshaft position sensors to know which cylinder is in the compression cycle. If either of the sensors is bad, the car won't start. Similarly, if the timing belt, chain or gears are broken, the camshaft won't turn and the engine won't start

The fuel pump starts running, building up the fuel pressure in the fuel injector rail. The engine computer alternatively opens electronic fuel injectors that spray short bursts of gasoline vapors into the intake manifold (or in case of the direct injection, straight into the cylinders). If the fuel pump is bad, the car won't start.



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SOURCE: I have 1998 Escort

Sounds like it may be the spark plugs. If you have a spark maybe a fuel filter is clogged? Hope all goes well!

SOURCE: My 1998 Ford Expedition won't start. I changed

Hi,

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This is how your problem is solved in my shop. Out of the box, I'd say that you have a problem with the fuel management system. However, there's a good chance that it's something simple and inexpensive like a clogged fuel filter or water in the fuel tank.

My second area of concern would be the manifold pressure sensor which is loctated under the hood, center, rear engine area, above valve cover, mounted in bracket. However, you must remember that these nothing more than starting points and not guaranteed solutions.

First a little background for your edification. You may be aware of all this but we've never done business before and all assumptions are off the table.

For an engine - make that any engine and irrespective of manufacturer - to run, you need three things to happen inside the engine, compression, fuel and ignition, without any one of these components the engine will not run.

• Compression - Engine compression caused by crankshaft rotation and pistons moving up and down inside the engine block. If the timing belt or timing chain fails it will cause the camshaft to become out of correlation with the crankshaft or allow the camshaft to stop rotating. Either of these conditions will cause the engine to lose compression and sometimes cause internal engine damage.
• Fuel Delivery System - The fuel system includes: fuel pump, fuel injectors, pressure regulator, fuel filter and pressure lines. This system is used to supply fuel under pressure to the fuel injection system, the lack of fuel pressure or volume will cause the fuel delivery system to fail and the engine to stall or not start.
• Ignition Spark Delivery System - The ignition system components include: spark plugs, spark plug wires, distributor (if applicable), crankshaft angle sensor, camshaft angle sensor, ignition coil, ignition module, knock sensor and PCM (powertrain control module). The engine relies on the ignition spark to be delivered to the combustion camber at the correct time. If the ignition spark stops or is delivered at the wrong time the engine will not run or run poorly.

Whenever your engine cranks but does not start, runs rough, staggers, sags or cuts off, follow this Troubleshooting Guide. Some of these steps require a code scanner. They are costly but AutoZone will loan you one for FREE.

Most vehicles operate by the same principle; basic troubleshooting procedures apply to most cars.

• Step 1: Anytime you have a problem with electronically controlled components such as an engine, transmission, ABS brake, or SRS (supplemental restraint system, Air Bag) inspect all fuses using a test light and check the under hood power distribution center and under dash fuse panels. If all fuses test okay continue to the next step.
• Step 2: To check for problems with electronically controlled components such as an engine, transmission, ABS brake, or SRS (supplemental restraint system, Air Bag) and the fuses test okay a trouble code scan is needed to identify any system trouble. Use a simple scanner tool to retrieve trouble codes and see if they relate to the specific problem, like a crank angle sensor failure code. If the trouble code present does not pertain to the immediate problem like an EVAP code ignore it until a later time, after the car is running.

The reason we repair non-related codes after the engine is running is because sometime false codes can be triggered by the engine not running. Once the engine is running again the code present might cycle and turn itself off. You might say "if the engine doesn't run shouldn't it have a trouble code?" Sometimes conditions occur that will not be detected by the computer, example: if the fuel pump fails the computer cannot detect the failure, so the engine doesn't start and the computer thinks everything is okay with no codes. If no trouble codes are present proceed to the next step.

If you have trouble using the code scanner or interpreting the codes click on the following link and use my access code (carrepair): Free Automotive Repair information for Users of a Code Scanner www.repairpath.com

All the best

Ben

SOURCE: 1999 ford escort zx2 cranks but won't start

As with any no-start issue, you will need to figure out if you have a problem with fuel pressure to the injectors, or spark to the plugs.
I would also check the computer for trouble codes.
Let me know what you find out.