1995 Buick Riviera Code P1640

1995 BUICK RIVIERA
21,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
JDMOD2
  • MEMBER
  • 1 POST
Check engine light is on. Code comes up P1640 which gives me 3 possibilities. The torque converter locks up Ok, so that eliminates one. The other 2 are Boost Control solenoid and Evaperator canister Purge Valve. How do I determine which of these 2 is the problem? My local parts store does not carry either part. Are they dealer items and how expenseive are they?
Nov 30, 2008 at 2:03 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
2CARPRO JACK
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 11,533 POSTS
That code is for Quad Driver Module 1. Here is a diagnostic chart, follow it and you should be able to isolate the problem. Yes, both of those are probably dealer items, but I dont have a price listing for them


https://images.2carpros.com/forum/automotive_pictures/1639_Riviera_1.jpg

Dec 1, 2008 at 7:52 AM
Advertisement