Kryptok Posted August 25, 2011 Report Share Posted August 25, 2011 Hey guys, I have a friend that is getting frustrated with his Mustang Car:1997 Mustang GT 4.6L Problem:Randomly when he gets on it, it almost wants to stall then it finally starts accelerating. He's not apart of any forum like this or anything, so I thought I'd try to hook a brotha up! :fuckyeah: He asked me if I knew anyone that works on Mustangs exclusively, so could you guys give me some pointers or someone to contact for him? Thanks in advance! Oh and it's my birthday today so give me some happy birthdays!:lolguy: 1 Quote Link to comment Share on other sites More sharing options...
RyM3rC Posted August 25, 2011 Report Share Posted August 25, 2011 This probably should be in tech help. Happy Birthday. Do you have more info about the car? Stock/modified, miles, anything? Quote Link to comment Share on other sites More sharing options...
Mr. Jones Posted August 25, 2011 Report Share Posted August 25, 2011 Moved to tech. Quote Link to comment Share on other sites More sharing options...
Kryptok Posted August 25, 2011 Author Report Share Posted August 25, 2011 It is modified.. he said he's put alot of money into it. But he had to go when we were talking so I didn't get much out of him. I'm assuming alot of miles. And sorry posting in the wrong section lol, just saw this section and went for it. Quote Link to comment Share on other sites More sharing options...
Kryptok Posted August 25, 2011 Author Report Share Posted August 25, 2011 Thanks Jones:gabe: Quote Link to comment Share on other sites More sharing options...
RyM3rC Posted August 25, 2011 Report Share Posted August 25, 2011 Dayum Jones, you're almost as quick as I am. Well it would be helpful to know if it has done this since he owned it, or if it started after a modification or maintenance event. I don't know Mustangs particularly well but I'd start with plugs/wires/distributor cap. So this is random, only at higher throttle openings, and there aren't any other symptoms? No hard starting, poor fuel economy, bad idle, poor throttle response, etc? Quote Link to comment Share on other sites More sharing options...
Patterson Posted August 25, 2011 Report Share Posted August 25, 2011 I'm guessing the check engine light is on. I'd take to one of parts store chains, get the codes scanned. My money is on mass air sensor. Quote Link to comment Share on other sites More sharing options...
jeffro Posted August 25, 2011 Report Share Posted August 25, 2011 mass air, o2 sensor, spark plugs, CoPS. in that order. Quote Link to comment Share on other sites More sharing options...
schmuckingham Posted August 25, 2011 Report Share Posted August 25, 2011 auto or manual Quote Link to comment Share on other sites More sharing options...
Patterson Posted August 26, 2011 Report Share Posted August 26, 2011 auto or manual Ford :dumb: Quote Link to comment Share on other sites More sharing options...
AJ Posted August 26, 2011 Report Share Posted August 26, 2011 clogged cat, clogged fuel filter, dirty MAF are all things that can also cause his issue. Quote Link to comment Share on other sites More sharing options...
Rocky31186 Posted August 26, 2011 Report Share Posted August 26, 2011 Among a TON of other things it could be, a friend of mine had the same issue and it ended up being his alternator.. Without more info it will be hell trying to help you.. Quote Link to comment Share on other sites More sharing options...
Buckeye1647545503 Posted August 26, 2011 Report Share Posted August 26, 2011 It is something between the front and rear bumper, Start at the front and work rearward till you find a part that tests bad. Quote Link to comment Share on other sites More sharing options...
Kryptok Posted August 26, 2011 Author Report Share Posted August 26, 2011 Ill update you guys tomorrow after I talk to him and let you guys know. Quote Link to comment Share on other sites More sharing options...
Guest Hal Posted August 28, 2011 Report Share Posted August 28, 2011 Ill update you guys tomorrow after I talk to him and let you guys know. I'm going to wait for a list of mods and more details before I give any opinion. There are a lot of simple issues that could cause an intermittent hesitation like you described. Quote Link to comment Share on other sites More sharing options...
Kryptok Posted August 29, 2011 Author Report Share Posted August 29, 2011 90,980 miles. All add-ons were bought brand new from Jeg's. When i initially started having this problem i was told it was crankshaft sensor, camshaft sensor, throttle position sensor or alternator. I replaced all with same results. BBK exhaust(no cats), MAF, high performance fuel pump, BBK throttle body, aluminum pulleys, MSD Ignition w/ coils, E3 spark plugs, Ford Racing 9mm wires, BBK cold air. When i had it dyno'd and chip installed he said he overrode the o2 sensors, so i have no o2 sensors with straight exhaust. I talked to a friend yesterday who said he was experiencing the same problem i'm having but it was on a Dodge truck. Said he replaced ignition coil and has not had a problem. Owner of Dynotune Motorsports dad told me last year that MSD coils are junk and that i should put factory coils back on vehicle. So maybe he's correct and i need to do it. It could possibly be the fuel filter. I don't think i replaced it. I'm getting to the point where i'm about to take off all add-ons and go back to factory originals. So this is what I got in return. Quote Link to comment Share on other sites More sharing options...
AJ Posted August 29, 2011 Report Share Posted August 29, 2011 get rid of those junk e3 plugs. Quote Link to comment Share on other sites More sharing options...
Buckeye1647545503 Posted August 29, 2011 Report Share Posted August 29, 2011 Don't the 97's have a returnless fuel system? if so the larger pump could cause the issue. Also if the TPS is adjustable and he did not set it properly then it to can cause the issue Quote Link to comment Share on other sites More sharing options...
Reed44 Posted August 29, 2011 Report Share Posted August 29, 2011 is your check engine light on? if so what are the codes. he would have just cancelled out your rear 02's since you have no cats, the front ones will still read. pull the plugs and see what they look like. what kind of maf do you have Quote Link to comment Share on other sites More sharing options...
warrior62 Posted August 29, 2011 Report Share Posted August 29, 2011 Don't the 97's have a returnless fuel system? if so the larger pump could cause the issue. Also if the TPS is adjustable and he did not set it properly then it to can cause the issue If its return style then a larger pump isn't going to effect it any. It will return the un-used fuel. :masturboy: Quote Link to comment Share on other sites More sharing options...
ansonivan Posted August 29, 2011 Report Share Posted August 29, 2011 It sounds like he's already guessed away more than the cost of an accurate diagnosis at a reputable shop. Might be time to take it somewhere that knows what they're doing. Quote Link to comment Share on other sites More sharing options...
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