Constant icm failure due to exhaust (Page 2/2) fierofool JUL 24, 09:47 PM Nor do the 88's have the ductwork across the trunk wall or the place to bolt the cooling tubes. cvxjet JUL 25, 12:41 AM I found that the trunk fan on my car doesn't seem to ever run- (I have no AC); I took it out but saved the blower- made an aluminum piece to finish it's housing, and plan on installing it behind the right IMSA scoop on my 85......I will run a duct across the firewall and then have it aimed from the firewall at the distributor- Hidden and yet functional- I will make sure it turns on- not when the car is running, but when the car has warmed up a bit. Obviously, someone with an 88 could do this mod- You do need the IMSA scoops or something similar and a blower...I should state that I moved the battery up front also, which cleared the area under the normal battery position for the duct to come up into the engine compartment. Just a (Crazy) suggestion...... theogre JUL 25, 01:58 AM quote Originally posted by pmbrunelle: I thought about that, but I feel like blower on all the time is considered a normal operating condition, as it comes on every time the A/C is switched on. I imagine that for folks in Texas and such, the A/C button is left permanently pushed in. Are their blowers dying often? Personally I drove my previous Fiero for about 5 years / 50 000 km, blower on all the time, without a blower failure. I prefer to favour the reliability of the distributor and ignition module by blowing air at them constantly, even if it risks prematurely killing the blower. The blower fan isn't like fastback taillights; they aren't highly sought after, so replacements are easy to come by. For myself, a 5-year (maybe more, but that hasn't been tested) replacement interval for the blower is reasonable, considering that the blowers are plentiful and easy to replace in the car. Some run many years and some do not. Yes Rad Fan and that blower are used a lot. While Heat Blower is on all the time for most people, isn't at highest speed all that time. I've replace many fan/blower motors and not just GM because these motors are made cheap w/ mostly sleeve bearings that do wear out as oil in them drys, or brushes wear out, etc. Like many fans used in PC and a lot more even tho most are bush less have most of same problems. And is Not easy to find the engine blower in many places. Most junk yards don't even strip older cars in many areas, just crush to make scrap. Many can't even crush them on site now because cities counties and/or state won't allow this. You still get new rad fan and heater motor but not this as new part unless you find something similar and mod to fit. Running a blower may cool but often ICM Heat isn't what kills them but most just believe the hype. Most ICM like many Mil Spec E'parts are made to take higher heat then most others that really Hate Heat. Your CPU tries Throttling before shutdown but most consumer products crash or completely die over 130-180°F inside of the parts. While doing temp test in another tread I left a dash cam on and it crashed well before cabin reach max temp. Cooled down it still works. Storage temp is not the same as running temp for any electric parts. Patrick and some others added a passive heatsink to the bottom of the dist below ICM. May help or not depending what is killing the ICM for a given owner. But Passive heatsink shouldn't add to other problems. Unlike most PC Fan(s) sucking/pushing dirt into the heatsinks etc. I've seen Car fans/blowers w/ major dirt in them and/or what the air goes to/thru. Blower is a big reason why many heater boxes are full of crap and catch fire.