Help--Engine Surge
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,748
Likes: 0
From: Titusville FL
Help--Engine Surge
Hey Everybody,
I was hoping some of you tech wizards may have an idea or two on a little problem I have noticed. I have a 99 A4 and have noticed that there seems to be an intermittent engine surge when I am at a little over 2,000 RPM (going around 65 - 75 mph). The surge doesn't seem consistent, however it does seems to show up more when it is warm outside. Today must have been the worst it has been. I checked my airbox and all connections seem to be tight around the MAF and throttle body. Any suggestions on what it could be? I checked my codes, but nothing came up that should cause this problem. I am thinking that it is time to take it to the shop, but would like to hear what the forum may think it is so I go in there informed.
Thanks in advance everybody :seeya
I was hoping some of you tech wizards may have an idea or two on a little problem I have noticed. I have a 99 A4 and have noticed that there seems to be an intermittent engine surge when I am at a little over 2,000 RPM (going around 65 - 75 mph). The surge doesn't seem consistent, however it does seems to show up more when it is warm outside. Today must have been the worst it has been. I checked my airbox and all connections seem to be tight around the MAF and throttle body. Any suggestions on what it could be? I checked my codes, but nothing came up that should cause this problem. I am thinking that it is time to take it to the shop, but would like to hear what the forum may think it is so I go in there informed.
Thanks in advance everybody :seeya
Melting Slicks
Joined: Nov 1999
Posts: 2,343
Likes: 854
From: MI
Cruise-In VI Veteran
Re: Help--Engine Surge (Spacecoast)
Hello, The engine needs air, spark, and fuel to run. Seems that you looked at the air (intake system).....Was the fuel filter ever changed?
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,748
Likes: 0
From: Titusville FL
Re: Help--Engine Surge (69)
Hello, The engine needs air, spark, and fuel to run. Seems that you looked at the air (intake system).....Was the fuel filter ever changed?
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,748
Likes: 0
From: Titusville FL
Re: Help--Engine Surge (Spacecoast)
I am hoping that it is something to do with fuel/air/spark. However has anybody ever hear of an engine surge caused by a bad torque converter or something along those lines. The car accelerates like a beast so I figured the transmission is fine, but want to know if this could be a cause as well.
Team Owner
Joined: Jun 2000
Posts: 37,636
Likes: 0
From: Just trying to make it through each day.
Cruise-In III Veteran
Cruise-In V Veteran
St. Jude Donor '03-'04
Re: Help--Engine Surge (Spacecoast)
Surging is usally an air related issue. Bad connection somewhere...........Check and tighten all connections.
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,748
Likes: 0
From: Titusville FL
Re: Help--Engine Surge (Buckmaster)
Thanks for the input Buckmaster. :thumbs: Makes me feel a bit better.
As I was checking for any possible leaks, I tried to start my car and guess what??? The battery was dead. I took it out in the nick of time since the positive terminal started to leak as I unscrewed the terminal out. Damn lucky on that one. Just curious, but could a dying battery cause air/fuel mixture issues if the computers weren't getting enough juice?
Thanks again for all of your input :cheers:
As I was checking for any possible leaks, I tried to start my car and guess what??? The battery was dead. I took it out in the nick of time since the positive terminal started to leak as I unscrewed the terminal out. Damn lucky on that one. Just curious, but could a dying battery cause air/fuel mixture issues if the computers weren't getting enough juice?
Thanks again for all of your input :cheers:
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