Ford Explorer 95 4.0 Check Gages and Cataliza Light

I know and I am almost certain that it is the catalyst, because the light of it is on, and in the escape there are no traces that this is working ... but the check -gauge light is the k worries me, the repair can come out very expensive, also that it has a small leakage of oil in the front differential ... greetings ...

Greetings Pablo, each brand has a particular way of showing faults of both functioning and critical conditions of the fluids, you already know the check Engine, the Trans Check (review transmission), some symbol as a key or padlock (the activated immobilizer) as well as in the new fiat a symbol of bulbing ringing (indicating some burned light), in Ford the check gauges it means review Activate whether the engine temperature is high, if under the fuel level, oil pressure and I think low oil level, low load battery or is not sending the alternator, there is a measure that they devised to alert that some value is outside the normal range of operation, check these signals and even their sensors if possible. Greetings and luck.

Tomorrow I will go with the current owner to do a road test, to force it and thus decide if I buy it or not, before that we will put gasoline, if it were why the light turns on, it should go out, the rest of the levels is OK, the other thing that caught my attention is that the temperature did not go up almost nothing, but the engine was not hot ... I tell you if I manage to know what you have, you Another idea I hope to comment ... greetings.

Wolfi is right, the Gauges check warns you of some indicator that is not working or the failure of some mechanical component that sends signal to these, the good catalyst is only changed since they are compounds of seramics activated chemically and when they spoil nothing they do, this failure can be presented in the vehicle as a failure of the oxygen sensor since it saturates its signal, the sensor can be tested ways.