Originally Posted by DaveSSEi
Can you tell me where the cannister is located?
Also, do you know where the purge and vent sensors are located?
The dealer claims my system is holding pressure.
They said I had bad readings on my fuel pressure sensor, so that is why they replaced it.
I wish I could find a Haynes manual on the vehicle.
My DIC appears to be giving me flakey avg gas mileage readings now.
I think it is an electrical problem.
Does the Evap System have its own voltage regulator?
If so, do you know where it is located?
Thanks for you assistance with my problem.
I appreciate it very much.
Dave, I don't want to steer you wrong and am not 100% sure where they put the
evap. cannister in 2001, but the typical location has been on the driver'*
side front near or under the airbox. You should be able to follow the
vacuum lines from your throttle body to the cannister. It will usually have
the purge valve on the top of the cannister also.
The purge valve is another common area of failure, so be sure to check it
As far as the dealer comment that your system is holding pressure; they
either meant that it is holding vacuum or they were talking about the fuel
system, which is a pressure system.
As far as the Haynes manual goes, I recommend spending the extra $$ for a
Factory Service Manual (FSM) for these cars. The Haynes I have is good for
basic maintenance only and fairly useless for diagnosis. FSM'* are well
worth the money for anyone who does their own work. One correct diagnosis
and repair and it will more than pay for itself, IMO. Here'* an FSM for
yours that isn't too bad (cost), but you may be able to do better on ebay:
Also, since I don't have the manual for your year, the best I can do on your
electrical issue, at this time, is to hope that one of our resident experts with specific knowledge of the 2001 system pipes in. We have a good mix of expertise on the
site and we will muddle through getting you the help you need.
Sorry I couldn't be a more specific help yet, but we'll get you there.
Mike: 1997 SE w/ 183K, aka White Horse
, Gutted Airbox w/K&N, drilled 180* t-stat, tint all around, clear corners w/SilverStars, "PONTIAC" light up tail, PEMs, NGK TR55s