I need to replace the Mass Airflow Sensor in my 1999 XJ8L, but I can't
find a repair manually for any Jag in the last 14 years... could
someone point me to a manual or suggest where I can find instructions
of replacing the MAFS?
It's a very simple job. Disconnect battery. Disconnect electrical connector to MAF sensor. Remove (unbolt) MAF from air duct. Install new MAF. Reconnect electrical connector. Reconnect battery. Finished!
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Fuel pumps are no always straight forward, they sometimes retain fuel under pressure and have to be discharged in order to be replaced. If your so sure it's gone (not an easy diagnosis) the replacement instructions will be on the replacement pump instructions or an owners manual. DON'T TAKE CHANCES WITH PRESSURISED FUEL ! Good Luck
A small leak over period time will cause fault light (amber) to come on. There is no dipstick. Can only be refilled by dealer or certified Jag Mechanic. Cost of fluid at dealer $60. Quart. Check online; $15 quart
yes their is a way to replace the mass air flow. Get a can of brake clean or throttle cleaner, throttle cleaner is going to work best. remove the until and spray it down with throttle clean, let it dry for about 15 min. and reinstall it.
Now a little warning for you, IF their is no visual damage to the mass air flow then you can do this successfully. Now the reason why I always replace them instead of spraying them down is because is MOST cases the mass air flow will start acting up again. Sometimes it takes a weeks, sometimes months, sometimes years its hard to say.
But the worst you have to loose, is it doenst work an your out 5 bucks for the can of fluid.
I had the same problem on my 1998 XJ8. My dealer told me it was the Mass Airflow Meter, which needed replacing to the tune of around $500. After a second opinion at my local Jag mechanic, it turned out to be a hose that was broken on the lower part of the front of the engine. Check the vacuum hoses for breaks or loose fittings.
I recently had the same code come up when my car failed to start in the mornings. It also said that the crank sensor had failed. Having changed the sensor and still not starting it went back to the garage. According to a Jag enineer the ECU will fail to register if it gets less than 12v from the battery, this will also throw up several codes for the diagostics. Solution, change the battery. Problem solved.