Yet another problem with my 98 - Mustang Evolution

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Old 08-03-2013, 08:33 AM   #1
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Yet another problem with my 98

Hey all, my 98 gt is having issues again maybe someone can help.
So ive posted about this before, but when I punch it in 2nd and 3rd gear the car just bogs down and It feels like its choking, almost like it isnt getting enough fuel. Well my alternator went out about a month ago and when I changed it the car drove great and pulled hard so I assumed that was the issue but now its starting to choke in those gears again and the car feels gutless, surely my month old alternator isnt going bad already?
The only thing different this time is my low coolant light being on even though its full
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Old 08-03-2013, 09:55 AM   #2
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Hey all, my 98 gt is having issues again maybe someone can help.
So ive posted about this before, but when I punch it in 2nd and 3rd gear the car just bogs down and It feels like its choking, almost like it isnt getting enough fuel. Well my alternator went out about a month ago and when I changed it the car drove great and pulled hard so I assumed that was the issue but now its starting to choke in those gears again and the car feels gutless, surely my month old alternator isnt going bad already?
The only thing different this time is my low coolant light being on even though its full
So it doesnt do it in 1st, 4th, or 5th? What rpms are you at when it happens?
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Old 08-03-2013, 10:30 AM   #3
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Not in first. Honestly I havent tried 4th or 5th yet, my drive to work is residential and this just started up yesterday
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Old 08-03-2013, 10:42 AM   #4
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Hmmmm well I don't see it being an issue with the alternator. Usually I start with checking fuel/spark first. Or a faulty/dirty sensor. How does it idle?
Oh an does it occur at the same rpms?
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Old 08-03-2013, 12:33 PM   #5
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Idles good, if im just cruising or ease on the gas its fine. Its only when im full throttle that it has a problem
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Old 08-03-2013, 01:22 PM   #6
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Check the throttle position sensor. might be dirty. Could be simple as that.
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Old 08-03-2013, 02:20 PM   #7
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TPS don't get "dirty". They do wear out though. Probably not your problem. It wouldn't surprise me if your alternator was weak. I've been through five of them at times before getting a good one. Diagnostic time. Take it to the place where you bought the alternator and have them check the charging system, and, if they can, have them pull up any codes that you may have and go from there. It sounds like a fuel delivery problem to me also, but first things first...
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Old 08-03-2013, 02:54 PM   #8
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Check your timing if it's tuned. That sounds like spark, fuel or timing. Clean you MAF. It probably just feels like it's not happening in first due to aggressive gear ratio.
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Old 08-03-2013, 03:08 PM   #9
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TPS don't get "dirty". They do wear out though. Probably not your problem. It wouldn't surprise me if your alternator was weak. I've been through five of them at times before getting a good one. Diagnostic time. Take it to the place where you bought the alternator and have them check the charging system, and, if they can, have them pull up any codes that you may have and go from there. It sounds like a fuel delivery problem to me also, but first things first...
Right I meant it might be outta whack, but typically it would idle funny if that were the case. I was thinking of the MAF. A lot of good advise to start with
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Old 08-03-2013, 03:20 PM   #10
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Im an electrical noob so bear with me, but if my alt was weak wouldnt I have a problem from the start? Anyway a bit more input, ive noticed it only has issues once the engine has warmed up, and its not consistant, one pull it will have problems and the next pull will be strong and smooth
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Old 08-03-2013, 03:33 PM   #11
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Intermittent. Fun. Again, find out if there are any stored codes. Im assuming that everything has been cleaned and tuned up? MAF? Throttle body? Reasonably fresh plugs? Fuel filter?
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Old 08-03-2013, 03:35 PM   #12
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All but the fuel filter
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Old 08-03-2013, 03:37 PM   #13
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Definitely do the filter!
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Old 08-03-2013, 03:39 PM   #14
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Definitely do the filter!
+1!!!!!!!!!!!!
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Old 08-03-2013, 06:18 PM   #15
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Haha alright. Where is it on an SN mustang? Ive only ever owned fox's before
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Old 08-03-2013, 06:29 PM   #16
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Haha alright. Where is it on an SN mustang? Ive only ever owned fox's before
Almost the same spot as a fox. Can't miss it.
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Old 08-03-2013, 06:33 PM   #17
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Sweet, ill change that out tomorrow and see where im at. Thanks guys
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Old 08-04-2013, 09:06 PM   #18
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Hey guys really dumb question. Where exactly is the fuel filter on a 98? All I have at home are ramps and I couldnt see it as far as I could climb under
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Old 08-04-2013, 09:12 PM   #19
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You're going to have to jack up the car. Its mounted in front of the gas tank.
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Old 08-04-2013, 10:18 PM   #20
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Ah ok. Then im either looking at buying a jack or going to a shop, any idea how much a shop would charge?
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Old 08-04-2013, 11:05 PM   #21
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IDK. Probably not too much. It's a 5 min job once you get to it.
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Old 08-05-2013, 06:21 AM   #22
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IDK. Probably not too much. It's a 5 min job once you get to it.
+1
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