2003 Cadillac CTS "engine running ruff check light" Questions

...engine light on. When it was running, it had sputtering and ruff acceleration. Autozone code read P0128 relating to the thermostat Could there be something else going on? Temperature sending unit ...

katiesmoengine runs ruff and skips at times-engine light will come on runs ruff I would start with tune up coil packs might be bad auto zone will perform check engine lights for free.

ruff at idle; fuel mileage is at about 10MPG Check engine light is not on but does work. 1. New o2 Sensor 2. New Mass Air Sensor 3. New Engine Control Computer (used old PROM did not buy new one) Fuel

running ruff and the cel (check engine light) came on and started to flash it read that misfire on cylinder 1 did plugs and wires and car is still running ruff like it seems to be at a certain rpm not

...a leaking injector? The seals between injector and cylinder head can harden and crack. Check by dribbling a little light oil round the injector at its joint with the head while the engine is

...ruff idle. There is no check engine light on. It is most likely you wheel alignment (costs about 20 bucks to have your wheels aligned) or try checking the tire Pressure to make sure they're all even ...

engine was running ruff, replaced cap, tuck running fine. After 100 miles it is running ruff again and check engine light is on. I found a hose around the destrutor cap, looks like a vac hose but cant

...engine light started flashing on and off so I brought it home disconnected battery cabled and reset computer.The light went away but the car is still running very ruff and if you place your hand over ...

...ruff or smooth? Are any lights lit on the dash , check engine etc. ? Could have a partially plugged IAC air passage .idle air control (IAC) valve ! The engine computer uses the IAC to control idle , ...

...Engine runs has ruff idle up to about 1200 rpm then runs great, had a shop fix some wires that were shorted but that had nothing to do with the check engine light that just fixed the rpm gauge. The ...