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Have a 97 Deville, had been leaking coolant slowly, after engine had warmed up it was dripping by passenger front tire ( down the boot area), also associated with? AC would only blow hot air. Took it in, was told that I needed a new thermostat and a backflush told them to do it if it would fix problem. Now over a 20 mile trip had to pull over 3 times as engine was too hot to drive, had to add coolant as was low. Is it possible that they put a bad thermostat in or should I be worrying more that either they screwed something up when they worked on it or a new problem has arisen? I took it back, they said the fan was not coming on, and they replaced 3 relays. Also stated they ran power to the fan and it works. Claims it may have to do with the ECU and they aren't qualified to check any further than they have. Any suggestions? Thanks

Saturday after driving in heavy traffic, waiting in line at Chik-fila, and idling in the parking lot, my ATS-V overheated. The ATS-V has a robust cooling system, so not expected. I shut it off then I used Onstar to call roadside assist, and they sent a flatbed tow truck to bring it to Crest Cadillac. I scheduled with Dallas Cadi for my airport transport Today for a business trip. Mainly I wanted to get the V to Crest Saturday so they could look at it this week. Today Crest called and confirmed a radiator fan was out, but the engine was unharmed. They are fixing/redoing my tint on the passenger window while it is there. so, sounds like good news, nothing major. Should be ready for pickup when I get back to town.

Hey everyone, I'm rolling my introduction into that of this project: "Soldiers Shield" I'm a former Army Infanrtyman, living in Ohio while pursuing my Bachelor's in Electronic and Computer Engineering. This project however, is not a vanity title. This 1998 DeVille belonged to my youngest brother (I am the oldest of four), we found it in many parts in his garage after we lost him in the Helmund district. It has been flooded three times, shot, and deer wrecked, but I have plans for it. I have been working on a Micro-ATX Intel I5 install with touch in the armrest and in the void of the radio. I have begun experiments with interfacing the 1870 bus to the PC for replacement of the missing IRC module. Eventually, this will provide long term, time tagged error reporting and some runtime adjustments. Plus, having 5.1 surround in my car is nice- provided through 5 channel 2500 watt(surrounds) and 600 watt(subs) amplifiers. Eventually, I would like to look at electrochromatic tinting and supercharging... But for now, I suppose I have to focus on the pesky "keep it running" issue. I am a decently intelligent person, however, the N* is a ball of impracticality rolled through a pile of convolution crapped out by some whacked out engineers. After dealing with the disassembly of my intake to change my started solenoid, tracing my malfunctioning wipers to corrosion in the trunk, and a whole host of issues to a surprisingly not a fire in my passenger vanity that failed to blow a fuse somehow... I can only come to the conclusion that those GM engineers were high one day, and said, "you know what would be funny? Let's put an engine in sideways and watch the techs react!"... But it is one tough SOB. I'll post here as issues are tackled and would appreciate any shortcuts over self-discovery. For example- this week's research: What input, beside Engine coolant Temp sensor does the PCM use to trigger the coolant fans?! I am sick of running the air conditioner (which assumes the fan motors, relays and wiring are all good). Thanks in advance! J. Campbell