sreeder Posted February 18, 2012 Report Share Posted February 18, 2012 I have a 1997 eldorado etc and at stoplights and only when idling at stand still does my car cut out or miss. It does not cut out, miss, or have problems while pressing the gas or going down the road. I replaced, plugs, air filter. I am not getting any codes come up, cant find any vacuum lines that are leaking. Someone please give me an idea if this is a sensor or what it could be. Thank you. Link to comment Share on other sites More sharing options...
sreeder Posted February 18, 2012 Author Report Share Posted February 18, 2012 Car cuts out misses while idling at stand still. NO problems driving down road at any speed. Replaced plugs, air filter. Any clue what this could be, not showing any codes in my system either. Link to comment Share on other sites More sharing options...
sreeder Posted February 18, 2012 Author Report Share Posted February 18, 2012 fdsfds Link to comment Share on other sites More sharing options...
Bruce Nunnally Posted February 18, 2012 Report Share Posted February 18, 2012 Please check the fuel pressure regulator. Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
Ranger Posted February 19, 2012 Report Share Posted February 19, 2012 And clean the TB. Link to comment Share on other sites More sharing options...
scott y Posted February 19, 2012 Report Share Posted February 19, 2012 ?What is fdsfds? Link to comment Share on other sites More sharing options...
sreeder Posted February 25, 2012 Author Report Share Posted February 25, 2012 I checked the fuel pressure reg and it's not spitting fuel. How do I check the throttle body? I cleaned it and it was really dirty but still runs bad. Also cleaned the iac and no help. Could it be a coil pack? If not what else should I check ? I just cleaned the plate on the throttle body should I clean more? Also how do I tell if the tb or iac are functioning properly? Link to comment Share on other sites More sharing options...
Ranger Posted February 26, 2012 Report Share Posted February 26, 2012 Clean the ENTIRE TB. That means the throttle plate as well as the bore. The IAC passages are in the bore. If they are carboned closed it will not idle. The IAC valve should set a DTC if it is malfunctioning. Link to comment Share on other sites More sharing options...
sreeder Posted February 27, 2012 Author Report Share Posted February 27, 2012 No dtc codes at all . Could it be injectors? I cleaned the entire throttle body and it looks new and cleaned the iac and no codes. Could I have a bad plug or coil pack? Link to comment Share on other sites More sharing options...
Ranger Posted February 29, 2012 Report Share Posted February 29, 2012 No dtc codes at all . Could it be injectors? I cleaned the entire throttle body and it looks new and cleaned the iac and no codes. Could I have a bad plug or coil pack? Of coarse you could. Could be the wires as well, but I would not expect any of those to cause a stall at idle. A misfire, yes. Link to comment Share on other sites More sharing options...
sreeder Posted February 29, 2012 Author Report Share Posted February 29, 2012 No dtc codes at all . Could it be injectors? I cleaned the entire throttle body and it looks new and cleaned the iac and no codes. Could I have a bad plug or coil pack? Of coarse you could. Could be the wires as well, but I would not expect any of those to cause a stall at idle. A misfire, yes. I'm not actually stalling normally just idling really rough. Link to comment Share on other sites More sharing options...
Patrick7997 Posted March 6, 2012 Report Share Posted March 6, 2012 You state that you changed plugs, and air filter. Did you change spark plug wires??? Bad wire??? Link to comment Share on other sites More sharing options...
sreeder Posted March 13, 2012 Author Report Share Posted March 13, 2012 I have not changed wires but am going to. I changed the fuel filter which was needed anyway but that didn't help. Also the car is idling a little high at times but not much. What could cause my car to idle high and cut out? Could my iac be messed up but not set off a code? Link to comment Share on other sites More sharing options...
Ranger Posted March 14, 2012 Report Share Posted March 14, 2012 The IAC valve is monitored so it should set a DTC if it fails. Link to comment Share on other sites More sharing options...
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