85 2m4 SE / 2.5 Temperature Issues (Page 6/7)
cartercarbaficionado APR 01, 10:52 AM

quote
Originally posted by 82-T/A [At Work]:
Yes... hah... here's a quick video of one of the current problems:




The fire, from what I can tell, had nothing to do with that problem... but the guy apparently wired up a bunch of accessories, like a 12-disc CD changer, an accelerometer that measures G-forces on some kind of gauge, and a bunch of other weird things.

The guy had no concept of fixing things... and merely "added." There are two positive and negative power cables... and there are two "sets" of horns... I don't even know why...


typical tpi behavior lol.(forgot its the twin tbi setup) never had one that ran right out of...oh 8 now.. jeez im almost 22.. how time flys amiright?
yeah that sounds about right. you either get stock but rotting, high mileage hero/track car, or you get....that
82-T/A [At Work] APR 01, 11:06 AM

quote
Originally posted by cartercarbaficionado:

typical tpi behavior lol.(forgot its the twin tbi setup) never had one that ran right out of...oh 8 now.. jeez im almost 22.. how time flys amiright?
yeah that sounds about right. you either get stock but rotting, high mileage hero/track car, or you get....that




Yeah, it's Cross-Fire Injection, which should work fine once the TBI units are rebuilt. Biggest problem is all the vacuum lines from that time frame. So she's going to go through and eliminate all the vacuum lines and work backwards. We already bought a new catalytic converter, and we're going to be eliminating the smog pump since it's wildly ineffective and isn't even needed with the newer catalytic converters.

I did already replace the fuel pump and fuel pickup... just because I was getting tired of waiting and I needed to be able to move it around and stuff. The engine has only 50k miles on it (verified), but man... the thing sat a long time with the previous owner.
richard in nc APR 01, 07:19 PM
i bought a WVE sender from rockauto for my 1987 2.5.it read very high too.i replaced it with one from my parts car and the guage seems right now.
82-T/A [At Work] APR 27, 06:27 PM
Hey guys, I wanted to update this post... it's finally been solved.

It was the sensor!!!

I'm kind of pissed, it was a brand new sensor... I think it was also WVE from Rock Auto... I can't remember the replacement I ended up getting... but while we had the cooling system drained (since we were installing the new radiator, and doing everything else), I went ahead and swapped out the sensor.

We hooked everything back up, filled and burped the system, and drove around without a thermostat (to properly burp the car). j

We drove EVERYWHERE... the car ran so amazing, I can't even tell you. The rear-end was totally tight, and totally solid. The front-end is a little bit floaty... it's the only thing we haven't re-done... so the front suspension needs to be rebuilt, and that's the next thing.

But the temperature gauge... it never went over the 150-160 mark once... (the little tack mark between the 100 and 220 mark). The car ran so cool, and absolutely perfect. So that was the problem the entire time... it was the damned sensor...
82-T/A [At Work] MAY 05, 05:00 PM
Wanted to post a quick update.

We've been driving the car the past couple of weeks. It's especially hot out today, but the temperature on the sensor never got above the 1/4 mark. But... I don't have a thermostat in it right now since we just got it going two weeks ago, and haven't gotten around to installing a new one in it.

Question though. As I was pulling in (picking my daughter up from school in her car)... we saw a little puddle of coolant, just a little bit when we moved the car.

It's definitely NOT from the previous location where we were having all our problems, that's for sure been solved. But it LOOKS like it's coming from the water neck... specifically, I think I may not have tightened the hose clamp down far enough (as it barely looks like it's even depressing the hose on the neck).

Question I have though... I couldn't get it to leak while I was watching it. I let it idle for like 15-20 minutes... not a drop. It's only after a lot of spirited driving. I'm PRETTY SURE it's coming from that hose because we replaced it, since the old one had a gouge in it (from Rock Auto)... and I guess I didn't tighten it enough.

Question though... is it normal for coolant to leak (when there is a slight leak) only during spirited driving, even if the car never overheats? Is it possibly as a result of higher pressure from the water pump since it's spinning at higher RPMs? Just curious. My concern of course is that maybe I have a head gasket leak, but I seriously doubt that... just overthinking things. I just find it odd that it would only leak when we're driving around in high rpms, and when it's idling... not a drop, especially when the temperature on the gauge doesn't show a hair over 1/4.

Thanks!
82-T/A [At Work] MAY 05, 07:43 PM
Son of a ***** ...

I tightened the hose on the thermostat neck... and drove the car around. it was sitting at 220 for quite a bit, but then all of a sudden it jumped to about 180 on the gauge... and stayed there almost indefinitely... only going to MAYBE 190 when I would be stopped at traffic. Car ran much better and smoother with a thermostat in it (since now it's actually running with proper temperature) and even my gas consumption decreased.

I pull into the garage, and the front radiator is just gushing coolant... this is a BRAND NEW aftermarket radiator. I can't even begin to understand what possibly happened here, but I am pissed. I put a pan under it, and it lost about a gallon or so of coolant. This is so frustrating... I don't know if maybe a bolt penetrated it and put a hole in the radiator, or if somehow it just sprung a leak from poor welds... I don't know... but I am pissed. Now I have to take the fan, radiator and everything back out again.
cartercarbaficionado MAY 05, 10:13 PM

quote
Originally posted by 82-T/A [At Work]:

Son of a ***** ...

I tightened the hose on the thermostat neck... and drove the car around. it was sitting at 220 for quite a bit, but then all of a sudden it jumped to about 180 on the gauge... and stayed there almost indefinitely... only going to MAYBE 190 when I would be stopped at traffic. Car ran much better and smoother with a thermostat in it (since now it's actually running with proper temperature) and even my gas consumption decreased.

I pull into the garage, and the front radiator is just gushing coolant... this is a BRAND NEW aftermarket radiator. I can't even begin to understand what possibly happened here, but I am pissed. I put a pan under it, and it lost about a gallon or so of coolant. This is so frustrating... I don't know if maybe a bolt penetrated it and put a hole in the radiator, or if somehow it just sprung a leak from poor welds... I don't know... but I am pissed. Now I have to take the fan, radiator and everything back out again.


heyyy im not the only one cursed with fiero radiators anymore. welcome to the club so far ive had 8 fiero radiators explode on me 👍
in all seriousness theres 0 quality control on anything anymore so you can try again but i would be prepared for issues again with either it being clogged with manufacturering debris and inspeft welds throughly. there could also be a plug in the side thats leaking since ive had a few rads that used a oringed bolt where the fan bolted in (i do NOT like any 2001 gtp radiators from the aftermarket because they all pull this crap)
82-T/A [At Work] MAY 06, 12:03 PM

quote
Originally posted by cartercarbaficionado:

heyyy im not the only one cursed with fiero radiators anymore. welcome to the club so far ive had 8 fiero radiators explode on me 👍
in all seriousness theres 0 quality control on anything anymore so you can try again but i would be prepared for issues again with either it being clogged with manufacturering debris and inspeft welds throughly. there could also be a plug in the side thats leaking since ive had a few rads that used a oringed bolt where the fan bolted in (i do NOT like any 2001 gtp radiators from the aftermarket because they all pull this crap)




Yeah... I'm not pleased. Not happy to be in your shitty radiator club! Hahaha... but thanks for making me feel welcome. Haha...

I'm a little nervous too... I'm still getting puffs of white smoke, and I'm thinking there's no beating around the bush... I'm convinced there's possibly a head gasket leak somewhere... possibly where combustion is getting into the coolant passages. If I let the car sit and idle... and I rev it up... it'll get a huge puff of white smoke. But I can go drive it around everywhere, and there will be no smoke. But I let it sit and cool off a little... and magically, a puff of smoke.

I'm going to have to figure this out... but the car runs / drives absolutely amazingly... and no chocolate milk in the oil.

I think the next step is to figure out where it's leaking from the radiator... get the radiator patched (I found an aluminum welding guy who I just dropped off the Solstice intercooler with), and then put on a radiator compression tester to see what's happening. I have to assume that if it spikes like crazy, I have my answer... and then I need to go looking for a new cyl head.
cartercarbaficionado MAY 06, 01:08 PM

quote
Originally posted by 82-T/A [At Work]:
Yeah... I'm not pleased. Not happy to be in your shitty radiator club! Hahaha... but thanks for making me feel welcome. Haha...

I'm a little nervous too... I'm still getting puffs of white smoke, and I'm thinking there's no beating around the bush... I'm convinced there's possibly a head gasket leak somewhere... possibly where combustion is getting into the coolant passages. If I let the car sit and idle... and I rev it up... it'll get a huge puff of white smoke. But I can go drive it around everywhere, and there will be no smoke. But I let it sit and cool off a little... and magically, a puff of smoke.

I'm going to have to figure this out... but the car runs / drives absolutely amazingly... and no chocolate milk in the oil.

I think the next step is to figure out where it's leaking from the radiator... get the radiator patched (I found an aluminum welding guy who I just dropped off the Solstice intercooler with), and then put on a radiator compression tester to see what's happening. I have to assume that if it spikes like crazy, I have my answer... and then I need to go looking for a new cyl head.


worst comes to worse i have a fiero duke head sitting on a shelf from the built Duke, i don't think its cracked but theres 0 good machine shops with 150 miles. i can also find you one im sure since im drowning in duke stuff atm
82-T/A [At Work] MAY 06, 01:28 PM

quote
Originally posted by cartercarbaficionado:

worst comes to worse i have a fiero duke head sitting on a shelf from the built Duke, i don't think its cracked but theres 0 good machine shops with 150 miles. i can also find you one im sure since im drowning in duke stuff atm




Thanks CarterCarbs... I may have to take you up on that. Do you have a need for a perfect 88 cyl head? It's just sitting on the floor of my garage taking up space.

But yeah... I don't think it's the head, but could be the gasket. It could ALSO be the intake manifold... it was pitted a lot by the coolant passage, so it's possible that's happening. I could remove the plugs and check to see if one of them is SUPER clean, that would basically answer my question if I have a head gasket leak, among other things.

It has lots of power though, really runs amazing.

Is it bad to re-torque the head bolts? Just curious... they're already on the car of course... but if I take a torque wrench to them again (90 foot pounds I think?)... will I destroy anything?