Question
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Followup To
Question -
I have a '99 Sedan DeVille with I believe a 4.6L engine.
The problem: My cruise malfuncions and disengages after a short time in set mode. The higher speed at which I set the speed the more fluctuation I experience in the LCD speedometer on the dash. At 70 mph or better the indicated speed jumps up and down eratically but the actual speed remains steady. After a short time the cruise can't keep up and shuts down and won't even come on again unless I shut the car down for a period of time and it apparently reboots or resets and will function again when I start the car.
My first effort to correct this was to, as advised, replace the speed sensor.
This didn't do it.
My next effort was to replace the transmission with "all the current updates" which should have corrected my problem. I was told that the gears in my old transmission were worn and I may also have had bad "internal" speed sensors.
My cruise still malfunctions.
Why am I still having this problem? Two Cadillac dealerships and now a (hopefully) reputable Cottman Transmission shop has worked on this at a very high cost to me and the c.c. still doesn't work.
PLEASE HELLLLLP!!!
Answer -
Has or IS the check engine light illuminated ?.
Tom, the codes are P0135, P0154, P0155
AnswerP0135 = Oxygen sensor Bank 1 Sensor 1 fault.
P0154 = Oxygen sensor Bank 2 Sensor 1 fault.
P0155 = Oxygen sensor Bank 1 Sensor 1 heater failure.
You will need to contact me at:
onlineautohelp@msn.com
In order for me to provide you with pictures, Instructions and electrical schematics (pictures).
PLEASE include your original question(s) and the MAKE-MODEL-YEAR and ENGINE SIZE of your vehicle when you contact me.
PLEASE tell me if you do your own repairs and or your skill level of auto repair. This is VERY VERY important if I am to be able to help you repair your own vehicle.
