Deathmobile
Member
Really not having much luck finding anything related to this specific issue- so if this has been addressed before, please direct me to the appropriate link.
I have an 88 FC turbo that I've recently had tuned at the shop after getting it a new starter. It had been running really rich and misfiring. It still runs a little rich, but it doesn't misfire as much anymore. The injectors checked fine. Sparks good- airflow as well as can be without a cold air intake, etc.
I'll be driving it and for no apparent reason I can determine, a constant, high-pitched, chime/alarm/buzzer will sound from somewhere in the dash. It will go on for a while and then sometimes it will turn off, and sometimes it will stay on until I shut down the car (or get aggravated to the point that I pull the meter and room fuses from the box...the only certain way to disable it I know). If I pull one fuse, sometimes it'll shut down for a while and then come back on later, same if I pull the Other fuse first (both 7.5ers) If I pull them both out though- I have neither heaters nor meters...which is not as aggravating as this constant high-pitched noise- but still not comfortable either.
There are no other indications that anything has changed when this happens. no temp gauge difference, no dash-lights... the seat belt alarm, for the record, also makes an annoying noise after a while whether I use seat-belts or not--- but it's more intermittent, less loud, and less annoying overall. (although if anyone can tell me how to disable it as well, great)
I haven't found anything like this in the Hayes manual...
I've read about CPUs and cold solders going bad... but I'm not sure if that applies to this particular symptom.
Now- when I had it at the local import shop being tuned and I asked them to check it out- they said it seemed to be some kind of floor over-heating warning, like around the pre-cat. This would make sense to me, as the pre-cat was stock and pretty gummed up after running rich for so long- and the rest of the exhaust is a high-flo cat into a 3" pipe all the way back. They recommended replacing the pre-cat and they refused to disable any potential safety mechanisms. (like in case of fire)
... my passengers haven't noticed it getting particularly warm down there, but who knows.
So I took it to my local muffler guy and we knocked out the pre-cat's guts and basically transformed it into a down-pipe instead of putting in a more restrictive, though legal, pre-cat... He assured me it would help with the overheating because it was all behind the O2 sensor and would heat up less than a cat... and well, since then the alarm would come on more immediately when I start up the car, as opposed to after driving it a while or commuting, but then it would kind of shut up after a little while.
Lately, though- and the reason I'm just trying to get it turned off somehow-
it comes on all the time, anytime, with no warning and no logical pattern.
If it seems like I should spring for a new pre-cat, fine- but I want to know that would solve the problem and not just be more money down the drain- ... either way I'd like to disable this stupid chime if there's no other reason for it-
even if I have to pull the CPU and yank the noise-maker part out... (which part is it?)
...I"m at my wits end and I have a long trip coming up. Does anyone know how I can fix this?
I have an 88 FC turbo that I've recently had tuned at the shop after getting it a new starter. It had been running really rich and misfiring. It still runs a little rich, but it doesn't misfire as much anymore. The injectors checked fine. Sparks good- airflow as well as can be without a cold air intake, etc.
I'll be driving it and for no apparent reason I can determine, a constant, high-pitched, chime/alarm/buzzer will sound from somewhere in the dash. It will go on for a while and then sometimes it will turn off, and sometimes it will stay on until I shut down the car (or get aggravated to the point that I pull the meter and room fuses from the box...the only certain way to disable it I know). If I pull one fuse, sometimes it'll shut down for a while and then come back on later, same if I pull the Other fuse first (both 7.5ers) If I pull them both out though- I have neither heaters nor meters...which is not as aggravating as this constant high-pitched noise- but still not comfortable either.
There are no other indications that anything has changed when this happens. no temp gauge difference, no dash-lights... the seat belt alarm, for the record, also makes an annoying noise after a while whether I use seat-belts or not--- but it's more intermittent, less loud, and less annoying overall. (although if anyone can tell me how to disable it as well, great)
I haven't found anything like this in the Hayes manual...
I've read about CPUs and cold solders going bad... but I'm not sure if that applies to this particular symptom.
Now- when I had it at the local import shop being tuned and I asked them to check it out- they said it seemed to be some kind of floor over-heating warning, like around the pre-cat. This would make sense to me, as the pre-cat was stock and pretty gummed up after running rich for so long- and the rest of the exhaust is a high-flo cat into a 3" pipe all the way back. They recommended replacing the pre-cat and they refused to disable any potential safety mechanisms. (like in case of fire)
... my passengers haven't noticed it getting particularly warm down there, but who knows.
So I took it to my local muffler guy and we knocked out the pre-cat's guts and basically transformed it into a down-pipe instead of putting in a more restrictive, though legal, pre-cat... He assured me it would help with the overheating because it was all behind the O2 sensor and would heat up less than a cat... and well, since then the alarm would come on more immediately when I start up the car, as opposed to after driving it a while or commuting, but then it would kind of shut up after a little while.
Lately, though- and the reason I'm just trying to get it turned off somehow-
it comes on all the time, anytime, with no warning and no logical pattern.
If it seems like I should spring for a new pre-cat, fine- but I want to know that would solve the problem and not just be more money down the drain- ... either way I'd like to disable this stupid chime if there's no other reason for it-
even if I have to pull the CPU and yank the noise-maker part out... (which part is it?)
...I"m at my wits end and I have a long trip coming up. Does anyone know how I can fix this?
