1998 Dodge Caravan Service engine soon code 403

251,000 MILES • 6 CYL • FWD • AUTOMATIC
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KGOSTEL
  • MEMBER
  • 1 POST
I recently replaced my alternator and had previously replaced the EGR valve. then it began a loud whine, leaking some type of fluid and transmission failed causing me to have it towed. Transmission was rebuilt by a trusted mechanic but the "Service engine soon" light now is on and I can't get it to go out using my OBD scantool. I think the loud whine is an idler pully bearing, I am losing power stearing fluid too though. The code 403 shows up when I check the OBD II but I am not sure where to start looking for proglems now.
Feb 22, 2009 at 12:05 PM
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ZACKMAN
  • ✓Experienced Mechanic
  • 4,202 POSTS
403 is for EGR Solenoid circuit. It does not necessarily mean the EGR valve, rather the its circuit to the PCM. Start with this diagnostic.


https://images.2carpros.com/forum/automotive_pictures/55316_98caravan403_1.jpg


https://images.2carpros.com/forum/automotive_pictures/55316_98caravan403_2_1.jpg


https://images.2carpros.com/forum/automotive_pictures/55316_98caravan403_3_1.jpg


https://images.2carpros.com/forum/automotive_pictures/55316_98caravan403_4_1.jpg

Feb 22, 2009 at 4:39 PM
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