Power windows and ac both don't work at same time as check engine light comes on. Service engine soon light indicates emission problems. Same thing happened 5 days ago then both went away. Radio, wipers, headlights still working. Now the service engine soon light is out and the engine indicator light is on. Fuses check good. any ideas? Thanks.
Thats pretty wild. The a/c and power windows are on different circuits.
The only thing I can think of that everything would be connected to is the ignition switch.
SOURCE: engine service soon light
i HAD SAME PROBLEM WENT TO CADILLAC THEY INSTALLED 2 CAM SHAFT SENSORS AT 48000 MILES. NOW I GET 29 AND 30 MPG ON TRIPS
SOURCE: 90 chevy 5.7L k1500 failed emissions
COULD BE A VACUUM LEAK TAKE PROPANE TORCH AND LEAVE OFF PUT AROUND ALL VACUUM POINT WHERE YOU SUSPECT COULD POSSIBLY LEAK ENGINE SPEEDS UP THAT'S IT WORTH A SHOT BEFORE SPENDING MORE CASH
SOURCE: Electrical problem
I just had the same issues. No headlights, interior lights, power door locks, radio controls on steering wheel, or dash lights. Pulled every fuse in cab and under hood, not a one was bad. I disconnected the battery terminals for a few minutes. When I reconnected them every thing was working.
SOURCE: Service engine code indicates EGR valve.
You could have a restriction in the egr ports. remove the valve. Plug the holes, start engine. 1 hole will be blowing out exhaust, the other will have large vacuum.
SOURCE: 2003 Dodge durango sport all four power windows not working
I know its not what anyone would want to here but sounds like a short. Best thing to do is first wiggle your key switch when the vehicle in in the on position then at the same time try to check to see if locks or windows are working. Then do the same in while the rig is running. If that dont work your ignition is fine and you need to take off door panels and check and wiggle all conections on window motors and lock motors and look for melted or burt wire or some that might have got hot. If all is good there you need to go to the back of the fuse box were the fuses to those items plug in and check there. As far as the service engine light goes either take it to the nearest Schucks or AutoZone and they will check it for free if not cycle the key on and off 3 times and on the 3rd time leave it in the on position look at your odometer light and it will flash a code remember that code and type Dodge then the code on yahoo search and it should tell you why your light is on Hintz whay sensor is bad. Hope this helps.
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