Are there any vacuum lines coming off the fuel tank on a 2000 Cavalier?

Asked by Feb 25, 2017 at 08:44 PM about the 2000 Chevrolet Cavalier Coupe FWD

Question type: Maintenance & Repair

My 2000 Cavalier was running rough and would not get past 40 mph, changed the fuel pressure regulator but I was told it was my fuel pump. Changed that now it wont start. (?)

7 Answers


Check your work for the fuel pump and that it is running properly, a fuel pressure gauge would help, if you don't own one some stores will loan or rent you one. As to other lines running from tank, you do have a vapor line coming from tank to EVAP canister, and from there to the purge solenoid and vent solenoid. A vapor line runs from the fuel sender assembly to the EVAP canister (that assembly also has the fuel tank pressure sensor in it). EVAP problems will usually set a OBD diagnostic code.

1 of 1 people found this helpful.

All are suppose to have a evap system they run to the canister, purge valves and back to engine to burn the fumes off.

I will have to check pressure.. I dropped the tank to check my wire connections... all seem intact correctly... but I dont understand why I would run before ad not now. No codes are showing but I was thinking I forgot to connect something. If I did forget a purgevalve line would a code appear even though it wont start?


Do you hear the fuel pump run when you switch the ignition on?

Yes I do.... I have heard that relays dont go bad, is this true? I work long hours during the week and I wont be able to check anything else until tomorrow evening.


Relays go bad, the parts stores are full of them for sale.

I will have to stop and get one. Thank you

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