My vehicle has a idle drop that can almost cause the vehicle to stall in relation to activity with the purge valve. Let me explain.
I recently changed timing chains and valve cover gaskets so I disconnected vacuum lines going to the intake by the throttle body and the line going to the charcoal canister.
The car starts and runs fine. While parked I start the car and let it run. After some time I begin to hear the canister purge solenoid beginning to tick or pulse. While this is going on the car still runs fine. However, at a point the canister purge valve solenoid will stop ticking. At this point, the idol of my engine drops out, almost to a point of stalling. Then after about two seconds the idle comes back up to normal and the canister purge solenoid begins pulsing again. I have not tested anything with the EVAP system. The car did this before I worked on the timing chain. I suppose it is possible that I could have put the vacuum lines on backwards from the intake manifold and the charcoal canister, but I did not think that would even matter since I thought the canister purge solenoid simply opened and did not draw a vacuum, but just allowed the intake manifold to pull fuel fumes into the manifold. There is a laundry list of repairs I have done to this vehicle since I purchased it, including the idle air control valve.
Any ideas on what could be causing my problem?
have the same problem?
Monday, July 10th, 2017 AT 5:51 PM