Error Code P1670 QDM questions - Page 5 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-28-2010, 02:06 PM   #41
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Good luck.
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Old 01-29-2010, 02:04 PM   #42
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Okay finally got the car to my house to work on it. I now need to know if anyone can tell me where the relays for the a/c clutch and hi and low fan speeds are. I assume they are under the hood but the ones under the panel are not labeled. Am I looking in the correct location? If so can someone point me to the locations of what I need? I tried to search but cant find it on the forum.
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Old 01-29-2010, 03:24 PM   #43
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Well I checked the fuse and it was bad replaced it and car runs fine now. I am kinda laughing my head off because the mechanic spent about 8 hours fiddling with this car and not once checked the fuse. Guess what? The cooling fans are on this same fuse thus the code lol
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Old 01-29-2010, 03:43 PM   #44
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Good job!
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Old 01-29-2010, 03:52 PM   #45
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So if anyone ever sees a P1670 code and the transmission is in limp mode I can send you a fix for only $9.99 lol!!! Thanks a lot for the help guys Now that the main issue is fixed time to move on to convenience issue fixes



I also wrote a little narrative about my day.

So it was a cold windy wet stormy January day. The temperature dipping close to freezing. I had my hat on and my fingers were really cold. I got in the car popped the hood and looked at the relays. Then I looked under the dash at the fuse panel and there was something terribly wrong..... the fuse was blown!! I searched and searched and searched for 5 seconds for a new fuse and thank the Lord I found one. I positioned myself to put a new fuse back into position. After what seemed like minutes but was only seconds I accomplished my goal, the new fuse was in place. Only one thing left to do. I got behind the wheel of the car inserted the key into the ignition and started the car. Now the moment of truth. I shifted the car into D and felt the transmission engage and I let off the brake and applied pressure on the gas pedal and the car actually moved forward. It worked!!! I drove a victory lap around the neighborhood to celebrate survival of my death defying ordeal. As I pulled the car back in front of the house I felt the satisfaction of yet another battle won.

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Old 01-29-2010, 06:44 PM   #46
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Only thing is...you didn't tell us which fuse!
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Old 01-29-2010, 07:07 PM   #47
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5C - Labeled as Cooling fan/Transmission
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Old 01-29-2010, 07:25 PM   #48
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I'm going to duplicate that on my 95 and see what happens.

Is that on the drivers side fuse panel?
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Old 01-29-2010, 07:28 PM   #49
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yeah drivers side fuse panel.
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Old 01-29-2010, 08:46 PM   #50
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Mike, make sure you make up a write up on this issue.
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