Weird engine behavior in neutral/park.
Thread Starter
Supreme Member
Joined: Jan 2003
Posts: 1,059
Likes: 0
From: Woodbury, NJ
Car: 87' Iroc
Engine: 350
Transmission: 700R4
Weird engine behavior in neutral/park.
Recently when I start my car the engine won't rev in park/neutral. I can put my foot down 1/2 on the pedal, the engine will struggle to rev to 2500RPM, and then, with my foot holding at 1/2 throttle, the RPMs will just continue to drop to below 1000 even with my foot still down....only feathering the gas brings it back up. It does this sporadically to me.....once the car is in gear it doesn't do this. Though the engine always seems to want a slight pump as it goes into gear to prevent stalling, but once it's in gear and going, it will idle fine. Just wierd. Any thoughts?
Member
Joined: May 2003
Posts: 422
Likes: 0
From: dallas,tx
Car: 1987 Trans Am
Engine: tree-fiddy
Transmission: 700r4
hmm, I don't have the hesistation in trying to rev, but mine will stall when i put it in gear if it has warmed up. I'm searching the boards now hoping to find an answer.
Senior Member
iTrader: (1)
Joined: Feb 2003
Posts: 908
Likes: 0
From: parishville NY upstate
Car: 86 IROC-Z
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.42s/posi/disc
its sound sliek soemthing is binding up in your tranny man id get it looked at before i drive it any more
Supreme Member
Joined: Jan 2002
Posts: 1,322
Likes: 1
From: Bloomingdale,IL
Car: 91 RS
Engine: 305 Tbi (L03)
Transmission: 700r4
If the stator wont freewheel it will resist the flow of the fluid in the torque converter. Its like adding a big load to the engine. Thats why it doesnt rev in neutral.
Member
Joined: Jul 2002
Posts: 266
Likes: 0
From: Baltimore MD area
Car: 82 El Camino
Engine: built 355
Transmission: T-56 upgraded internal
Axle/Gears: 10 bolt 3.42
dr. nick rivera, sounds like it might be your torque converter, i had the exact same problem in a 89 grand am i had, tranny went, got it replaced and cold would be fine, warm it would stall out in gear i had to neutral drop it till i got it fixed and sold it
Trending Topics
Thread Starter
Supreme Member
Joined: Jan 2003
Posts: 1,059
Likes: 0
From: Woodbury, NJ
Car: 87' Iroc
Engine: 350
Transmission: 700R4
I found my problem, my PCV valve was slowly going out. Finally it just flat out broke, and so it was just letting the PVC port on the carb suck air freely from the outside. Runs fine now.
Member
Joined: May 2003
Posts: 422
Likes: 0
From: dallas,tx
Car: 1987 Trans Am
Engine: tree-fiddy
Transmission: 700r4
Originally posted by StealthElephant
I found my problem, my PCV valve was slowly going out. Finally it just flat out broke, and so it was just letting the PVC port on the carb suck air freely from the outside. Runs fine now.
I found my problem, my PCV valve was slowly going out. Finally it just flat out broke, and so it was just letting the PVC port on the carb suck air freely from the outside. Runs fine now.
I had mine looked at by a shop today and they said that it was missing on 2 cylinders when it warmed up, wasn't missing when it was cold thou? I don't have a lot of money to pay them 100's of dollars to replace things like distributor and rotor, or plugs, so i changed them all and am still having the problem? So i guess i'll try new wires, but the ones i have on it have like 50 miles on them.
Thread
Thread Starter
Forum
Replies
Last Post
novaderrik
Transmissions and Drivetrain
3
Aug 10, 2015 12:44 PM





