Quote:
|
Originally Posted by bigrod118
well our cars are smart enough that all the information is feed into the computer and the car will throw a code when things to bad ie O2 sensors, cat, things like that.
what problem are you having
|
car intermitantly will die out while driving. Car will be running running fine at a constant speen but all of a sudden the rpms will either jump up high or most of the time drop drasticly. For lack of better wording... the engine will then seem steady out again but sometimes will show a check engine light after the rpms go up or down. Also when this happens when the car hits around 35-38 miles an hours you can hear the engine knocking really bad and there is almost no acceleraction. The knock clears up once the car gets up to about 45-50 mph.
I guess once the car goes through a couple driving cycles the problems goes away for a while... then is will do what i described above.... rise and repeat.
We just had the cat replaced last week for this problem... did not fix it. When we take it to the dealer (4 times) they never can tell us what is wrong with the car. The only code showing up is a crank sensor which they say checks out fine and there some engine knock code.