Fixed my surge at idle when the car is cold
08-03-2016, 05:34 PM
#1
Fixed my surge at idle when the car is cold Not enough people come back to report how they fixed an issue. I never posted the issue here but searching the forums gave me no solutions.
SO...here it is...
The issue: Car surges at idle for a minute or two until the car is warmed up. Surging gets so bad that in gear the car can stall. Car is a 6 speed and runs a catch can. Car also spits out a bit of blue smoke when it is surging.
The cause: pulled the throttle body off and found the intake was caked with oil inside despite having a catch can. I think I might have been negligent in emptying the catch can once during an oil change.
Solution: Removed the intake and cleaned out the TB, the intake ports on the heads, and the intake itself with Brake Cleaner. The IAC motor seemed a bit dirty but not too bad.
Put it back together and fired up on half a key like a champ. Odd thing is I'm also seeing more volts from my alternator. 14.4 instead of 13.3. It's never been that high. Weird.
SO...here it is...
The issue: Car surges at idle for a minute or two until the car is warmed up. Surging gets so bad that in gear the car can stall. Car is a 6 speed and runs a catch can. Car also spits out a bit of blue smoke when it is surging.
The cause: pulled the throttle body off and found the intake was caked with oil inside despite having a catch can. I think I might have been negligent in emptying the catch can once during an oil change.
Solution: Removed the intake and cleaned out the TB, the intake ports on the heads, and the intake itself with Brake Cleaner. The IAC motor seemed a bit dirty but not too bad.
Put it back together and fired up on half a key like a champ. Odd thing is I'm also seeing more volts from my alternator. 14.4 instead of 13.3. It's never been that high. Weird.
08-03-2016, 08:07 PM
#2
Not enough people come back to report how they fixed an issue. I never posted the issue here but searching the forums gave me no solutions.
SO...here it is...
The issue: Car surges at idle for a minute or two until the car is warmed up. Surging gets so bad that in gear the car can stall. Car is a 6 speed and runs a catch can. Car also spits out a bit of blue smoke when it is surging.
The cause: pulled the throttle body off and found the intake was caked with oil inside despite having a catch can. I think I might have been negligent in emptying the catch can once during an oil change.
Solution: Removed the intake and cleaned out the TB, the intake ports on the heads, and the intake itself with Brake Cleaner. The IAC motor seemed a bit dirty but not too bad.
Put it back together and fired up on half a key like a champ. Odd thing is I'm also seeing more volts from my alternator. 14.4 instead of 13.3. It's never been that high. Weird.
SO...here it is...
The issue: Car surges at idle for a minute or two until the car is warmed up. Surging gets so bad that in gear the car can stall. Car is a 6 speed and runs a catch can. Car also spits out a bit of blue smoke when it is surging.
The cause: pulled the throttle body off and found the intake was caked with oil inside despite having a catch can. I think I might have been negligent in emptying the catch can once during an oil change.
Solution: Removed the intake and cleaned out the TB, the intake ports on the heads, and the intake itself with Brake Cleaner. The IAC motor seemed a bit dirty but not too bad.
Put it back together and fired up on half a key like a champ. Odd thing is I'm also seeing more volts from my alternator. 14.4 instead of 13.3. It's never been that high. Weird.
Normal charging rate is 13.8v-14.2v, but our gauges are not that accurate to start with.
08-04-2016, 08:23 AM
#4
Unfortunately the intake gunks up quickly,I would change to a good diesel oil. Since I started using Delo 400XLE my intake stays clean and I no longer have pinging at light throttle.
