Bad fuel odor inside car, and by rear wheel (by where the fuel door is) after fueling up, also when this started the car started missing at times, but not all the time. Getting a code to check fuel cap. Cap is tight, but just had brake lines replaced and mechanic maybe pulled something loose under the car???
REMOVE EVERYTHING FROM TRUNK , PULL BACK CARPET ON RIGHT HAND SIDE (TWARD CABIN) , REMOVE EGG SHAPED ACCESS PANEL , TAKE CAR TO GAS STATION AND FILL UP , GET IN TRUNK WITH FLASH LIGHT AND SEE IF GAS LEAKING AROUND FUIL PUMP , IF SO REPLACE FUIL PUMP GASKET ($10 KIT AT ORILEYS)
Very possible. The code for the fuel cap is probably one of the codes for a pressure leak in the gas tank vent system.
If it was not smelling before the brake repair, I would take it back to the shop that did the work.
SOURCE: 2003 Cadillac Deville a check gas cap error appears with svc engi
put a new gas cap, those system are pres. even if
the cap look ok it maby leaking replace with a new
one it should solve your prob.
eng.ligh come on because of the gas cap
SOURCE: Fuel filter location on 1993 Cadillac Fleetwood
some gm vehicles have an internal pump and filter (not strainer), and if not then its either under the hood somewhere, or in between the wheels under the car attached to the frame
SOURCE: 1991 cadillac deville 4.9 fuel trouble
You just need to go through a simple Idle Relearn Process.
The Idle Speed Control motor will cause the accelerator pedal to tap and the car will surge back and forth, actually acting like there is a lack of power during intial startup.
Whenever a battery is changed, went dead or the ECM computer is replaced.
In order to make the engine run normal again, you need to take the car through a relearn process. Otherwise the idle could be very slow or have a 30mph idle.
To enable it to relearn, here's what to do.
1) Disconnect the battery cable for 15 minutes, before hooking it back up.
2) (KOEO) Turn the Key On with Engine Off, just so the electronics are on, but without starting the engine and turn the climate control panel to off.
3) Push the off and warmer buttons on the climate control panel at the same time and hold for up to 5 seconds for the computer to go into diagnostics.
On the fuel panel screen it will display 888 then E52 and then 70.
When it gets to 7.0 shut off the key for 1 minute.
4) Repeat step 3, two more times.
5) Start the engine without pushing on the accelerator pedal and let it run for 18 minutes with the climate control panel off.
6) After 18 minutes put your foot on the brake and shift into drive and wait 1 minute.
7) Then turn on the a/c by pushing the auto button. It needs to be warmer than 60 degrees F so the compressor can engage. Wait 1 more minute.
8) Put the shifter back in park and turn the key off.
9) Wait 1 minute
10) Idle relearn is now complete and the engine should start and run correctly.
SOURCE: Trouble starting only after refueling
same problem 06 CTS...you probably hear a ticking noise under the hood, and car will not start after re-fueling- check engine code is like a p0442? which is a leak in the fuel system. you can try buying a new gas cap from cadillac or an ac-delco distributor to start. its only about twenty dollars. disconnect battery for about ten minutes to reset check engine light or find a local shop with an obd-2 scanner to reset light and re-diagnose. If check engine light comes back on with same code replace the evap. purge valve.(about $25) it is located on the passenger side of car on the intake manifold. it has one electrical connector and two hoses connected to it. no tools required to change which is a plus! disconnect battery or find local shop to reset light again. this should take care of the problem!!
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