While driving service engine soon light stays on shows code po740
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2004 Cadillac DeVille Question: ses light stays on po740-code
Answer #1csubak30 February 27, 2013, 05:50Master
Torque converter clutch malfunction. Check transmission fluid level. Also, could be a torgque converter clutch solenoid valve or its harness is open or shorted.
Replyjimi42, February 27, 2013, 17:28Rookie
Thanks a million for advice U just made this senior citizen happy!!!!
Answer #2Greg's Orange Auto (8805 Answers) , Orange, CA - (714) 482-6185globalhelper February 27, 2013, 06:28Master
agree with #1 or get a free diag and est from aamco then shop prices
Replyjimi42, February 27, 2013, 17:31Rookie
Thanks 4 your reply taking & interest.Will follow thru,again many thanks 4 assist!!