The diagnostic service fees are not included in the service call. If a diagnosis is needed to find out the problem then the mechanic needs to be compensated for their time to do the diagnosis service.
Code U1100 signifies a communications error which is either a module fault or a deficiency in the wiring harness between communicating modules. There's a possibility that a dying battery is a cause of such a code (and a cause of...
If you call out a mechanic to install a part that was diagnosed by another company then to answer your question is no. The mechanic that is to install a previously diagnosed parts cannot in most cases verify the part...
Nothing should be replaced until you have in hand a definitive diagnostic pinpointing the faulty segment of the car's electrical system. There may be too much voltage drop in the charging circuit, as well as elsewhere, but start with the...
If code P0136 sets the only way you can determine if the oxygen sensor has failed is to use an automotive scope to graphically depict the sensor output waveform (it will look roughly like a sine wave) and switching rate...
Hello, thank you for writing in. The components you have checked thus far have been valid steps. You want to go through system by system, and make sure the engine is getting what it needs. Start with the fuel system,...
Check to see if any diagnostic trouble codes have been stored in both the PCM and TCM. Check the fuses in the circuits that power the transmission controls. Occasionally, a short in a sensor such as an oxygen sensor will...
The purpose of the SES light is to alert you that there is a malfunction in the engine or powertrain. When the SES light turns on, you can attach a code scanner to the vehicle's OBD-II port under the steering...
Trouble code P1705 implicates the throttle position sensor (TPS). A transmission fault (which is indicated by a flashing "D4") can arise if the TPS is malfunctioning. Consequently, I would recommend testing the TPS first. Once code P1705 is resolved, then...
Yes, no start in the scenario you are describing is possible especially if Code U1000 has set, along with other codes such as P0717, but there are multiple code scenarios or combinations. One quick strategy is to pull and visually...
Inasmuch as the check engine light has illuminated, diagnostic trouble codes have been stored in your car's engine computer (PCM) and those codes, once downloaded, will probably reveal at least the general cause of the problem you are having. If...
If you are referring to the warning light for a loose gas cap loose and/or Diagnostic Trouble Code P0442, a loose or defective gas cap is merely one possible reason for the warning light or the Code. You could have...
On your car, the starter is below the air cleaner box and air tube. You have to remove those, as well as other components to access the starter. Once you have accessed the connections to the starter, test for power...
The codes being set should be investigated first unless they implicate systems or components that clearly are irrelevant as "causes" of a rough running condition in which case you would diagnose and fix the rough running condition first and then...
The short runner valve actuator that you replaced is just the electric motor that moves the short runner valve to its correct position. However, the problem is likely that the valve itself within the intake is sticking. Using an appropriate...
Your vehicle can use up to 15% ethanol with no ill effects and such use (of E-15 for example) does NOT require regular use of any particular fuel system "cleaner". Most gasoline vended these days already contains a sufficient additive...
The cause behind diagnostic trouble code P0171 is easiest to find by looking at the secondary firing patterns on the Bank one cylinders. That will confirm if the too lean condition, that has caused the code to set, affects all...
PCM's are usually replaced at the end of a "process of elimination". That is, with most engine management control failures, there are a whole host of common causes that are evaluated first. Once that long list of most common causes...
The cause behind diagnostic trouble code P0171 is easiest to find by looking at the secondary firing patterns on the Bank one cylinders. That will confirm if the too lean condition, that has caused the code to set, affects all...
If your vehicle's check engine light illuminates, there is a malfunction that should be diagnosed and repaired. If the check engine light is flashing, that means there is a serious fault, such as cylinder misfiring, that requires immediate repair. Misfiring,...
