Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

New Problem Weird RPM idle?

Thread Tools
 
Search this Thread
 
Old 05-16-2010, 01:32 AM
  #1  
Member
Thread Starter
 
dealbatony's Avatar
 
Join Date: Oct 2009
Location: Phoenix Az
Posts: 105
Likes: 0
Received 0 Likes on 0 Posts
Car: Trans Am
Engine: V8 350 TPI
Transmission: Auto
New Problem Weird RPM idle?

So lately my GTA has been acting up
i start the car n it'll start fine. Once started the RPM will accelerate and jump up n then it'll die down and sound like its gonna turn off, Then it'll jump up again, and so on. If i press the gas while on drive it will have no affect the car will just continue to act up. Even when on Park if i step on it the rpm wont stay up.

anyone familiar with an issue like this?
im getting really sick of always finding a new issue with my car.
every time i have money saved to fix my GTA's apperence or Mod, something new comes up!!!!!
Old 05-16-2010, 12:28 PM
  #2  
Moderator

 
Vader's Avatar
 
Join Date: Jan 2000
Posts: 19,383
Received 220 Likes on 180 Posts
Re: New Problem Weird RPM idle?

It might be a good idea to remove, clean, and lube the IAC, then clean up the TB and air passages. It shouldn't put much of a dent in your appearance budget.
Old 05-16-2010, 12:39 PM
  #3  
Member
 
Pairof91rss's Avatar
 
Join Date: Feb 2010
Location: Colton, WA
Posts: 134
Likes: 0
Received 0 Likes on 0 Posts
Car: 1991 B4C-1991 RS
Engine: L98 5.7 TPI-LB9 5.0 TB
Transmission: 700R4
Axle/Gears: 3.23
Re: New Problem Weird RPM idle?

Originally Posted by dealbatony
So lately my GTA has been acting up
i start the car n it'll start fine. Once started the RPM will accelerate and jump up n then it'll die down and sound like its gonna turn off, Then it'll jump up again, and so on. If i press the gas while on drive it will have no affect the car will just continue to act up. Even when on Park if i step on it the rpm wont stay up.

anyone familiar with an issue like this?
im getting really sick of always finding a new issue with my car.
every time i have money saved to fix my GTA's apperence or Mod, something new comes up!!!!!
unplug each injector and check each one with an ohm meter. they sould all read right about 16 ohms each. Not sure if its the problem, but a good place to start ruling things out. Only takes about 10 minutes, and best of all its free if you have a multimeter... and if you dont, good reason to get one!
Old 05-16-2010, 01:07 PM
  #4  
Member
Thread Starter
 
dealbatony's Avatar
 
Join Date: Oct 2009
Location: Phoenix Az
Posts: 105
Likes: 0
Received 0 Likes on 0 Posts
Car: Trans Am
Engine: V8 350 TPI
Transmission: Auto
Re: New Problem Weird RPM idle?

Ima just sell my GTA, I need something newer I'm tired of loading money into it just to keep it running..sad but oh well..
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
specialized
TPI
27
06-18-2022 09:26 AM
Cleotiz
Electronics
7
01-06-2018 08:56 PM
IroczFan
Carburetors
1
08-18-2015 05:19 AM
perZ
TPI
7
08-15-2015 01:17 PM



Quick Reply: New Problem Weird RPM idle?



All times are GMT -5. The time now is 07:47 AM.