1995 Bizzare PA electrical problems

95 buick park ave:

Intermittent Electrical Issues. Car decelerates from 2-3 RPM to 1 RPM when rolling down power window and sometimes when turning on rear defrost.

In general electrical problems are progressing, autolocking and unlucking mechanisms sometimes work fine, other times there is definately not enough power getting to mechanism and you can hear the mechanism go off but not enough juice to actually unlock all the doors or lock them.

Had battery and alternator checked out a couple times and everyone says its ok. I had a more heavy duty connection placed onto my battery and that improved some aspects temporarily.

I've had the car in a two separate shops, mostly to address the electrical issue. Even the Window RPM deceleration problem is intermittent.

When it was really cold the issues were much more pronounced, but when things warm up everything works better.

They were able to experience the RPM change with the window but basically didn't find anything further after scoping out the battery and alternator. I'm also having problems finding a mechanic i trust also. Alot of them want quite a large sum of money to dive further into the electrical issue which I have been resisting, since I'd like to gather as much info first as possible.

Occasionally car refuses to accelerate even when RPM and Engine revs up to 4-5rpm. Still intermitent though. After a minute car will accelerate normally in regard to RPM reading.

The RPM problem on the highway just started last week. Which is making me really worried that its the tramission. Yikes. But it was definately not a transmission problem up untill a week ago ... grrr

Sometimes the car stumbles heavily and shakes pretty well on startup, reving the gas doesn't help, but after 5 seconds things stabalize and everything is ok.

But the RPM change with power windows and power anything has been going on some time.

Anyway I'm worried about the transmission now, but any ideas on the other problems?

So far I've found things that sound like they could be related: Solanoid grounding issues, Rust on my cigarrette lighters, Possible rust/corrosion on a large set of wires that run through my drivers side door (My windows have been left open a few times thats why there is rust in the cigarette lighters).

I really want to know what your opinions of my new development of the car not accelerating on the Hightway. I really hope its not a new transmission development with all the current electrical issues.

There is a ground bus somewhere on the drivers floor. I would check and clean that first. There are a couple of threads about that on this forum.

There is a ground bus somewhere on the drivers floor. I would check and clean that first. There are a couple of threads about that on this forum.

So i just pulled up the floor...and yea If i yank it one way or another the car stops stalling when I turn on the rear defroster, AND the WINDOWS START WOORKING!!

It appears to be really staturated in there. I obviously have water leaking in somewhere...

It looks ok though... I have no idea how to fix the thing without fear of breaking it in the process..

Now if only this fixes the car from not accelerating on the highway?? god i hope so....

You have a bad ground. Get the water out of there, dry everything and clean the contacts.
I don't know whether this would fix your acceleration problem, but one thing at a time, you need to get this fixed first.

You have a bad ground. Get the water out of there, dry everything and clean the contacts.
I don't know whether this would fix your acceleration problem, but one thing at a time, you need to get this fixed first.

Do i need to disconnect the battery in order to start cleaning it up first?

No need to disconnect the battery, it's all ground in that terminal. Clean good with brass brush & contact cleaner, then apply dielectric grease before assembly.