Just wondering if anyone has ever addressed this before:
1995 Grand Prix SE Coupe
3100 V-6
Basically, the car has a glitch where sometimes it won't rev past 3K RPM if you're trying to accelerate on the highway or other similar scenarios. It kinda just bounces off 3K and once you're at cruising speed, it's fine from there on. It doesn't do it all the time, so it's hard for me to diagnose. No codes are being thrown
I'm leaning towards fuel starvation (filter or injectors, or possibly needing a tune-up) Another thing I'm wondering about is failing transmission solenoids. A noteable issue with this car that may be related is that it has a stall converter growl that we've chosen to just let take it's course. If the tranny goes, we replace it.
Thanks, guys!!
Trying to avoid asking ryan for suggestions since its diones car?
When at cruising speeds 55-65, what happens if she floors it? If it doesn't stumble then when it downshifts and begins to pull i would rule out the whole fuel issue and go with its more or an electrical problem. Does she have the 4t65e in that thing? I don't remember. I had an issue with mine where when i would floor it it would down shift begin to pull then just sit and stumble in the high rpms missing/stumbling. Turned out i had a bad ground wire within my ignition system. I know it has some high mileage, so i wouldn't be surprised if it was the shift solenoid, Vss sensor, bad ground somewhere.
my vote would go to a failing coil.... i had what seemed like an early rev limiter sometimes on the Beetle a while back, where at higher rpm it'd just hit a wall, but only intermittently... a few weeks later, my number 1 coil pack just up and died completely on me, and after i replaced it, never had the "false limiter" again.
Arrival Blue 04 LS Sport
Eco
Turbo
Megasquirt
'Nuff said
Cody:
Lol...nah. We just both have different opinions on what it could be. Kinda like Ed's Silverado--process of elimination that I'm trying to avoid.
Scarab (Jersey Jay 1.8T) wrote:my vote would go to a failing coil.... i had what seemed like an early rev limiter sometimes on the Beetle a while back, where at higher rpm it'd just hit a wall, but only intermittently... a few weeks later, my number 1 coil pack just up and died completely on me, and after i replaced it, never had the "false limiter" again.
If it were indeed ignition, that'd be a great thing. I wanted to do Accel coil packs, better wires and a good set of AC Delco plugs on her car anyway. If it fixed the problem as well, she'd be a happy girl.
So, you fix the f-er yet? Never heard back from you after our IM convo the other day...
Arrival Blue 04 LS Sport
Eco
Turbo
Megasquirt
'Nuff said
Well, I did coil packs, plugs and wires. Not a fun job on that car and from the notes on the radiator shroud, hasn't been done since '04. Started her up and basically doing the same thing.
I called Actron the next day and they told me how to get the scanner working with OBD1. Sooo, I plugged her in and pulled the code: MAP sensor--voltage too low. (1) $34.00 part later she's back up and running like a top. The tune-up made her much livelier, too!
Thanks again for the help, bud--the paperclip didn't work, though. She only has (3) pins in her OBD1 plug and I bridged all of them--no luck.
