Hey all,
Well-maintained early model 1997 TJ 4.0 Sport with 107K Miles, which I purchased new. Other than a header and cold air intake, it’s totally stock and I’ve had no problems, besides that expected with the transmission. Use MOPAR parts if at all possible. It’s more of a third car which gets used on short trips around town.
--Emissions-- It’s always passed until recently. Last year (prior to emissions and it passed) I replaced the purge valve with a MOPAR part and did the best I could using an Autozone generic charcoal cylinder. No such luck this time. Chack engine light came on a few months back but it was running fine, so I blew it off.
After failing, I took it to a respectable local place which said:
1. The tank did not leak during the Smoke Test;
2. The new purge unit was not working (couldn't get it to open/close via electronic link to computer); and
3. There was a bit of fuel in the connector between the (hard) emissions line going forward paralleling the fuel line and the soft line coming from the tank.
So, they figured one of the emissions valves on top of the tank may be shot and fuel may be getting up the line and toasting the purge unit. However, I called Collins Bros who said they’ve never seen a tank like that go bad, unless it’s cracked.
Cant find a replacement tank (even used) anywhere and the line / emissions hose connector is no longer made.
Replaced the purge valve with a new MOPAR unit and the Check Engine light went out. Filled the tank, took it for a ride before retesting and the light came back on after 15 miles. Same deal.
Throwing a No. 33 code (An open or shorted condition detected in the duty cycle purge solenoid circuit. Mechanics are screeching their heads. (After $500.00~)
Any thoughts? Dr. Jerry, you still around?
Well-maintained early model 1997 TJ 4.0 Sport with 107K Miles, which I purchased new. Other than a header and cold air intake, it’s totally stock and I’ve had no problems, besides that expected with the transmission. Use MOPAR parts if at all possible. It’s more of a third car which gets used on short trips around town.
--Emissions-- It’s always passed until recently. Last year (prior to emissions and it passed) I replaced the purge valve with a MOPAR part and did the best I could using an Autozone generic charcoal cylinder. No such luck this time. Chack engine light came on a few months back but it was running fine, so I blew it off.
After failing, I took it to a respectable local place which said:
1. The tank did not leak during the Smoke Test;
2. The new purge unit was not working (couldn't get it to open/close via electronic link to computer); and
3. There was a bit of fuel in the connector between the (hard) emissions line going forward paralleling the fuel line and the soft line coming from the tank.
So, they figured one of the emissions valves on top of the tank may be shot and fuel may be getting up the line and toasting the purge unit. However, I called Collins Bros who said they’ve never seen a tank like that go bad, unless it’s cracked.
Cant find a replacement tank (even used) anywhere and the line / emissions hose connector is no longer made.
Replaced the purge valve with a new MOPAR unit and the Check Engine light went out. Filled the tank, took it for a ride before retesting and the light came back on after 15 miles. Same deal.
Throwing a No. 33 code (An open or shorted condition detected in the duty cycle purge solenoid circuit. Mechanics are screeching their heads. (After $500.00~)
Any thoughts? Dr. Jerry, you still around?