I did the hold down the odometer reset stick and turned the key switch on and the numbers 116 281 and 447 popped upc there wasn't a p attahed just the 3 sets of numbers. Are these the error codes if so any suggestions or do you know what could be wrong

 

to get code u cycle the key on and off 3 times ....... i dont think that those numbers are codes coz as u said codes always shows a P before the numbers and have 4 numbers following the letter example : P0420

 

I tried it and worked perfectly! Thanks. Got a p2181 code any one familiar with this code? Suggestions?

 

P2181-cooling System Performance

 

P2181 can be set by a bad thermostat

 

before you were more than likely calibrating your gauges haha

 

I had my thermostat changed about a month and a half ago. I have had alot of problems with with my mpg and exhaust. I would go from 15mpg all the way down to 6mpg. Took it to the shop and they told me that my cats were stopped up and this is what was causing my poor gas mirage. Not only was I getting sucky gas mileage but would blow black smoke out the tail pipe that smelled like pure gas. Well long story short and 650to bucks down the roads had new cats and straight pipes out the back true duals. Still didn't help had the same issue of dumping fuel but this time and now the exhaust commingle just from one side of the engine. I replaced o2s because it was throwing a 139, 159, 171 codes that's when I got the 2181 code.

 

Did u put the stock 203 F thermostat ? and all this happens before or after changing the thermostat ? what is the temp reading on ur truck does the gauge reaches the middle mark ?