This 2008 Mercury Grand Marquis came in with the complaint that the a/c temperature was stuck on full heat. The complaint could have easily been reversed with no heat present and the system stuck on full cold. It has Automatic Temperature Control (ATC). I used my scan tool and found that there was a code … Continue reading “2008 Mercury Grand Marquis, A/C Stuck On Heat”
This 1999 Mercury Villager came in with the complaint that the turns signals would not work. The owner had replaced the turn signal flasher twice and stated that now all it does is buzz when the turns signals are activated. The first thing to check was the turn signal fuse and it was okay. The … Continue reading “1999 Mercury Villager Turn Signals Do Not Work, Flasher Buzzes”
This 2009 Mercury Grand Marquis came in with the complaint the air conditioner would only blow air through the defroster vents. Rarely would air come out of the face vents. This is a common problem and can be expensive to repair. A work around, of sorts, is to manually drop the blower speed to the … Continue reading “2009 Mercury Grand Maquis, Air Will Not Blow Out Of Face Vents”
This 2002 Mercury Grand Marquis came in with a customer complaint of a blower motor that no longer worked. The customer also stated that up until this point it would work sometimes and sometimes not. This repair is also for Crown Victoria and Town Car applications. I guess I have gotten so used to this … Continue reading “2002 Mercury Grand Marquis, Blower Inop”
This 1999 Mercury Sable came in with the check engine light on and a code P0401 for insufficient EGR flow. Luckily the EGR valve and the DPFE sensor are easily accessible on this car. I set may scan tool up to view DPFE voltage and connected my hand vacuum pump to the EGR valve. This … Continue reading “1999 Mercury Sable, P0401 Insufficient EGR Flow”
The wipers work fine except that they park with the wiper blades up, including while they are paused in delay mode. The problem is generally caused by a faulty mechanical park mechanism. and it has been my experience in the southeastern USA that leaves are the culprit. You will see in the following pictures. Let’s … Continue reading “1993 Mercury Grand Marquis,Wipers Do Not Park Properly”