Once that's taken care of put a bit of Dielectric grease on the electrical connection and give it a shot. As I left though i decided to clear the codes as I never have. Visually inspect the wiring for chafing, breaks, etc. The detects the air flow by means of this current change. It was driving fine with only a rough idle after a clutch replacement last weekend and then just quit on my son at a stop sign. I have fuel pressure according to the bleed-off on the injector rail.
Therefore, the must supply more electric current to maintain the temperature of the hot film as air flow increases. If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. This is done most easily from below the car in the area near the oil filter. Hi Guys, Okay, the compression test came back at 152 on the lowest and 160 on the highest with one spark plug out of each cylinder. Inspect the element, it should be a small silver filament, similar to what you'd see in a light bulb or an older space heater. My check engine light is not always on, seems like every 3rd to 4th time I start my car. Lets start with the converter.
In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver. So you should chech it on our car models. All you need to do is take the old one off and screw on the new one. Look for loose or cracked vacuum lines, including those to the vacuum brake booster or power steering idle-up switch. Also after about ten minutes there are still no codes present on the reader.
The on-board diagnostics system and engine control unit are in charge of monitoring a bunch of different, and if they get a reading that's a little out of whack, up pops the check engine light. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set. All of these can give you clues as to when the problem is occurring. List of all Powertrain codes. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. Here are some of the most common. These are the codes that are required for basic emissions fault diagnosis.
They can also clog up with carbon enough to fail to operate properly. You should also check that the spark plug gap is set properly. We did not change out the coil packs because both of them seem to work correctly with the truck acting the same with either disconnected. For a P0104 code, double check wiring and connector harnesses. The heat generated by the hot film is reduced as the intake air flows around it.
This will turn the check engine light off and then you will know if the check engine light returns, you've got further diagnostics to complete. Does the code reader do live readings or graphing? Turns out that using Seafoam to clean the intake did the job of fixing the code. Repair or replace as necessary before proceeding. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time. The following troubleshooting steps should be taken to confirm failure and make a proper repair. Pop the filter out and take a look, if it's dirty a vehicle that old with low mileage may not have received adequate air filter replacements just simply replace it and if possible either wipe out the air box with a damp rag or spray it out with compressed air to remove some of the dust sitting in there.
This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver. What causes the P0104 code? Do a thorough check on all rubber hoses, from vacuum lines to the intake tube. Final Step: In the definitions listed below, there is a test drive recommended after you've completed any repairs to see if the condition is fixed. When you see P0104 engine fault code on your engine code reader this description will help you. I was not able to get the exhaust head bolts loose as of yet so I tried loosening the intake manifold itself, weird how eight were easier to take loose than two.
What repairs can fix the P0104 code? This had no effect same misfire, back fire, or no idle. To refresh the connection, simply disconnect and then reinstall the connector. If yes, graph the O2 sensors front and back and see what's going on. It measures the intake flow rate by measuring a part of the entire intake flow. Ford Freestyle P0104 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Even so, excessive contamination may be impossible to clean, even after multiple applications, and replacement may be the only option. P0104 Code Description: Regarding the P0104 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket.