× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1991 Cadillac DeVille 4.9L Hight idle,poor acce
Posted to GM Driveability on 12/3/1998

Hi guys!

need you help on this one. car brought in has no power. it won't pick up gas when accel sometimes. back fire if you push the gas paddle harder.

readjust the timing cured the back fire. Changed OEM MAP. same things. check the TPS spec, out of spec....

  Related Documents & Media  1991 Cadillac DeVille

 
Message Closed w/FIX

car Vehicle Data

1991 Cadillac DeVille

VIN 1234567P89
Engine4.9 L / 8 cyl
EmissionsCA
SymptomsHight Idle,Poor Acce
OccursAlways, on Accel
Message Closed w/FIX

car Vehicle Data

1991 Cadillac DeVille

VIN 1234567P89
Engine4.9 L / 8 cyl
EmissionsCA
SymptomsHight Idle,Poor Acce
OccursAlways, on Accel