Welcome to Mustang Evolution.
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08-13-2005, 04:58 PM
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#1
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first mustang 3 days ago and problems already
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Registered User
Join Date: Aug 2005
City: tallahassee/fort myers
State: Florida
Posts: 13
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i bought a 99 gt w/62k on it and it runs real great and i love it except for one really puzzling problem. if i'm going from about 20-45 or 50 (seems to be about the range) it feels like the car is jerking a little or surging might be a better word. whats real strange is that if i turn on cruise control then its as smooth as can be. anybody got any ideas as to what it could be? car is mostly stock except for k&n drop in filter and flowmaster mufflers
edit:also lowered with eibach springs
Last edited by aparker813; 08-13-2005 at 05:23 PM..
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08-13-2005, 05:32 PM
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#2
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Re: first mustang 3 days ago and problems already
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WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 27,329
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I would start by doing a few little up keep things. Clean the mas air meter with ON contact NO residue electronic cleaner that you can pick up from autozone, reset the battery by leaving the negative terminal off a bit, change the fuel filter, check the rear end fluid.
See if it runs ok after this, is it a problem that happends when you are accelerating or just while you are in this MPH range, if its anytime in this MPH range it may be a wheel/tire balance/warped issue.
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Stingers, JLT, SS Inserts, MM FLSFC & CC Plates, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts
ME.com Member #29 - 400rwhp/380rwtq
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08-16-2005, 06:35 PM
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#3
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Re: first mustang 3 days ago and problems already
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Registered User
Join Date: Aug 2005
City: tallahassee/fort myers
State: Florida
Posts: 13
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cleaned the air meter, left the neg terminal off for a good bit, bought a fuel filter but still have to swap it in and check the rear end fluid but no good yet. from the way it feels i dont think theres anyways it could be a wheel issue, really feels like something throttle related |
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08-16-2005, 07:14 PM
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#4
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Re: first mustang 3 days ago and problems already
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Eyes So Tight I Pass For An Asian
Join Date: May 2003
City: Huntsville
State: Alabama
Posts: 27,539
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Sounds like it could be your spark plugs |
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08-17-2005, 03:36 PM
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#5
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Re: first mustang 3 days ago and problems already
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Banned
Join Date: Jun 2003
City: Severn, MD
State: Maryland
Posts: 3,920
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see if you have any codes, i think auto zone still does code checks
if they say that they can test it without the engine light on, tell them they are full of it, the EEC system stores codes also |
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08-18-2005, 11:43 AM
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#6
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Re: first mustang 3 days ago and problems already
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Registered User
Join Date: Aug 2005
City: tallahassee/fort myers
State: Florida
Posts: 13
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i dont know if this is related or not but also if i have it in drive (its an auto) and shift into neutral the rpms surge up a little and then drop back to normal, same thing when i go from reverse to drive or neutral back to drive |
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08-18-2005, 04:49 PM
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#7
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Re: first mustang 3 days ago and problems already
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Registered User
Join Date: Jul 2005
City: elyria
State: Ohio
Posts: 15
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do you hear any sputtering in the exhaust when the car is jerking? if not, it's most likely a transmission problem. do you know if the previous owners ever replaced the trans fluid? i'm wondering if the clutches or fluid is bad. |
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08-18-2005, 05:46 PM
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#8
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Re: first mustang 3 days ago and problems already
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Registered User
Join Date: Apr 2005
City: hot springs
State: Arkansas
Posts: 119
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if the surging is like a pattern (best way I can put if for now), I would say either plugs or coil pack. |
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08-18-2005, 09:53 PM
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#9
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Re: first mustang 3 days ago and problems already
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WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 27,329
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just getting a used car you never know how it was kept... so I would do everything to it thats needed just to be safe from changing plugs to rear end fluid so you have peice of mind.
__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Stingers, JLT, SS Inserts, MM FLSFC & CC Plates, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts
ME.com Member #29 - 400rwhp/380rwtq
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08-18-2005, 11:08 PM
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#10
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Re: first mustang 3 days ago and problems already
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Senior Tech Advisor
Join Date: Jun 2003
City: Burlington, NC
State: North Carolina
Posts: 2,685
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There is a sensor in the throttle body TPS, throttle position sensor that I believe might cause that sorta problems if it went bad....
__________________
 Rick Kilpatrick, AAS Automotive Systems Tech, Alamance Community College, Class of 99. 06 5 speed manual Mustang with Pony pkg : GT Mac Mufflers, true duals with one custom pipe. 2.5" system. GT bumper cover, all installed March 7&8 2006. AFE Stage 1 CAI, Motoblue Underdrive pulley, GT aluminum shifter knob, honeycomb rear blackout panel,and dash kit installed. Roush hood scoop and side window louvers installed. SS taillight trim has been installed, new alum. GT steering wheel installed.
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08-18-2005, 11:11 PM
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#11
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Re: first mustang 3 days ago and problems already
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Senior Tech Advisor
Join Date: Jun 2003
City: Burlington, NC
State: North Carolina
Posts: 2,685
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Another thing that can cause problems in throttle bodies is carbon build up on the inside of the throttle plate, what to do?::: get a can of spray carb cleaner and an old worn out toothbrush, spray and scrub the inside of the throttle plates til they are as clean as you can get them, this might help a bit too.
__________________
Rick Kilpatrick, AAS Automotive Systems Tech, Alamance Community College, Class of 99. 06 5 speed manual Mustang with Pony pkg : GT Mac Mufflers, true duals with one custom pipe. 2.5" system. GT bumper cover, all installed March 7&8 2006. AFE Stage 1 CAI, Motoblue Underdrive pulley, GT aluminum shifter knob, honeycomb rear blackout panel,and dash kit installed. Roush hood scoop and side window louvers installed. SS taillight trim has been installed, new alum. GT steering wheel installed.
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08-19-2005, 03:37 PM
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#12
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Re: first mustang 3 days ago and problems already
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WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 27,329
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__________________
2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Stingers, JLT, SS Inserts, MM FLSFC & CC Plates, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts
ME.com Member #29 - 400rwhp/380rwtq
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08-19-2005, 05:47 PM
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#13
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Re: first mustang 3 days ago and problems already
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Sold the '99
Join Date: Jan 2005
City: Simi Valley
State: California
Posts: 308
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i think he sold it and bought a new car and is on chevyevolutions about now
__________________
2001 Saleen S-281SC
Kenne Bell SC w/ intercooler, 90mm maf, mac cai, 70mm throttle body, 3:73 gears, Kenne Bell performance chip
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08-19-2005, 07:49 PM
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#14
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Re: first mustang 3 days ago and problems already
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Registered User
Join Date: Aug 2005
City: tallahassee/fort myers
State: Florida
Posts: 13
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heh no im still here, gettin ready to head back to school tomorrow so i've been trying to get all my stuff done and havent had time to check my post lately, thanks for all the help too guys, i hate the thought of just dropping my car off at some random garage to let them try and find a problem that i havent even a guess as to the origin of. I'm gonna try changing the spark plugs out and change my fuel filter and i guess clean throttle body |
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08-20-2005, 01:10 AM
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#15
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Re: first mustang 3 days ago and problems already
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Sold the '99
Join Date: Jan 2005
City: Simi Valley
State: California
Posts: 308
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yeah hang in there, im as oblivious as you. today i was driving behind my girlfriend who was driving my mustang and i noticed the third brake light flashing on and off when she brakes, intermittent i guess its called. i messed around with it for awhile now its working for the time being. sucks not knowing whats wrong with your ride
__________________
2001 Saleen S-281SC
Kenne Bell SC w/ intercooler, 90mm maf, mac cai, 70mm throttle body, 3:73 gears, Kenne Bell performance chip
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