My son's 1993 Camry has been hard to start, and has tended to conk out at stop signs unless he revs the motor. After checking a lot of possible causes, we believe we have discovered what seems to be a malfunctioning part: the EGR valve.
I say this because I disconnected the EGR valve, and suddenly my son did not need to rev the engine to keep it going at a stop sign, and it started smoothly while hot and then while cold.
Two questions:
- Can we easily clean this valve? (A new part at Advanced Auto costs 0, so we'd like to avoid that unless it's necessary.)
- If we buy a new valve, we may need to wait a few days for the part to come in. Any harm in using the car for a few days with the EGR valve disconnected?