SOURCE: 2003 cadillac deville want start
check battery voltage, if battery voltage is ok, you may need to check fuses under hood on passengers side, if start fuse is ok, you may need to have your starter replaced
SOURCE: I have a 1990 cadillac sedan deville with a E98 code
Sounds like the engine is idling to high. There is a procedure that you must go through to set it. Reply and I will let you know how to set it.
SOURCE: 2000 Cadillac Deville DTS 4.6L HO Northstar
Well, I don't think so. The pressure sensor will throw its own code (0450, 0451, 0452, 0453, or 0454). And likewise, the fuel level sender or sensor could also throw its own codes (P0460-P0464).
I'm not sure the level sensor and the pressure sensor are linked together. They are separate on a 2005 buick century, the pressure sensor being at the top of the tank located on the fuel pump module, but Cadillac: anything is possible.
Since you replaced the purge solenoid, there may be a problem in the circuit. The purge should have battery voltage to it with the key on. The ECM will ground the circuit internally when the purge is wanted. One symptom of a purge valve that isn't working or stuck closed can be a whooshing sound when the fuel tank cap is opened, indicating excessive pressure in the tank.
A shop's scan tool could be used to command the purge valve on to check it.
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