Need help on diagnoses

b-on-b 5.0 · November 29th, 2010, 08:19 PM

So my car was running great 347 stroker fully built blah blah blah..just reached about 800 miles on the motor

so i am driving through a neighborhood stop at a stop sign and just gradually take off from the stop sign..(car was warmed up and was just cruising it prior to this everything was completely fine) the second i started to accelerate( not romping on it) the car seem to start hesitating and like cutting out seeming as it was running on 7 cylinders.. so pulled over shut the car off checked all wires, vacum lines, computer chip, and ignition wiring everything checks out and is fine no holes rips or leaks....so i am trying to figure out wtf happened...check iac, maf, distributor, the spout for the distributor, and tps all are still hooked up..no check engine light came on or anything but it seems like the car stopped firing on all cylinders and has a weird pitch in the exhaust now..oil pressure is still great and is not smoking one bit and has no crank case pressure...so any ideas wtf it is? no loud nosie or anything bad coming from the motor motor idles fine but when it trys to rev up..in gear or not it seems like it is running on 7 cylinders or something and hesitating...so idk what the deal is..guna pull plugs next..figured if a rr came loose it would be making a hell of a racket so idk..

MacGuyver2978 · November 29th, 2010, 09:00 PM

I'm not sure what the proper name of it is but change the castle top looking thing in the distributor that's just under the rotor. I had a 94 gt that came real close to me pulling my hair out doing the exact same thing you are talking about. I was just about ready to change the whole distributor even after I had already changed everything inside it except for the castle. I decided to change it before a distributor was bought and the fixed the problem.

ryanw · November 29th, 2010, 09:05 PM

Originally Posted by MacGuyver2978

I'm not sure what the proper name of it is but change the castle top looking thing in the distributor that's just under the rotor. I had a 94 gt that came real close to me pulling my hair out doing the exact same thing you are talking about. I was just about ready to change the whole distributor even after I had already changed everything inside it except for the castle. I decided to change it before a distributor was bought and the fixed the problem.

i think they call it a "dizzy"

b-on-b 5.0 · November 29th, 2010, 09:50 PM

nope distributor and all ignition is brand new and distributor cap and rotor are brand new and perfectly fine

b-on-b 5.0 · November 29th, 2010, 09:51 PM

fuel pump relay went out though so idk if thats the problem or not will change it tomorrow and see

302Army187 · November 29th, 2010, 09:54 PM

keep us updated

b-on-b 5.0 · November 30th, 2010, 12:14 AM

for sure

moneymo · November 30th, 2010, 12:20 AM

Keep us posted bro

November 29th, 2010, 08:19 PM	#1
b-on-b 5.0 Regular 1993 Mustang 5.0 LX 11.45@122.34 Join Date: Jul 2008 Location: Lakewood, CO Posts: 344 iTrader: 0 reviews	Need help on diagnoses So my car was running great 347 stroker fully built blah blah blah..just reached about 800 miles on the motor so i am driving through a neighborhood stop at a stop sign and just gradually take off from the stop sign..(car was warmed up and was just cruising it prior to this everything was completely fine) the second i started to accelerate( not romping on it) the car seem to start hesitating and like cutting out seeming as it was running on 7 cylinders.. so pulled over shut the car off checked all wires, vacum lines, computer chip, and ignition wiring everything checks out and is fine no holes rips or leaks....so i am trying to figure out wtf happened...check iac, maf, distributor, the spout for the distributor, and tps all are still hooked up..no check engine light came on or anything but it seems like the car stopped firing on all cylinders and has a weird pitch in the exhaust now..oil pressure is still great and is not smoking one bit and has no crank case pressure...so any ideas wtf it is? no loud nosie or anything bad coming from the motor motor idles fine but when it trys to rev up..in gear or not it seems like it is running on 7 cylinders or something and hesitating...so idk what the deal is..guna pull plugs next..figured if a rr came loose it would be making a hell of a racket so idk.. __________________ Old setup 93 cobra motor, supporting mods, 11.5psi out of V3 S-Trim made 422.5rwhp and 450 rwtq ran 12's at 5800 ft above sealevel new setup 347 on 11psi made 616.9rwhp and 576.0rwtq

November 29th, 2010, 09:50 PM	#4
b-on-b 5.0 Regular 1993 Mustang 5.0 LX 11.45@122.34 Join Date: Jul 2008 Location: Lakewood, CO Posts: 344 iTrader: 0 reviews	nope distributor and all ignition is brand new and distributor cap and rotor are brand new and perfectly fine __________________ Old setup 93 cobra motor, supporting mods, 11.5psi out of V3 S-Trim made 422.5rwhp and 450 rwtq ran 12's at 5800 ft above sealevel new setup 347 on 11psi made 616.9rwhp and 576.0rwtq

November 29th, 2010, 09:51 PM	#5
b-on-b 5.0 Regular 1993 Mustang 5.0 LX 11.45@122.34 Join Date: Jul 2008 Location: Lakewood, CO Posts: 344 iTrader: 0 reviews	fuel pump relay went out though so idk if thats the problem or not will change it tomorrow and see __________________ Old setup 93 cobra motor, supporting mods, 11.5psi out of V3 S-Trim made 422.5rwhp and 450 rwtq ran 12's at 5800 ft above sealevel new setup 347 on 11psi made 616.9rwhp and 576.0rwtq

November 29th, 2010, 09:54 PM	#6
302Army187 Hardcore Enthusiast '89 LX 'Vert 10's or bust... Literally. Join Date: May 2009 Location: Denver, Co Posts: 2,915 iTrader: 0 reviews	keep us updated __________________ H/C/I 302 + nitrous for now... supercharger/turbo soon? www.youtube.com/Xarmy187 Please support my YouTube channel! My videos don't disappoint!

November 30th, 2010, 12:14 AM	#7
b-on-b 5.0 Regular 1993 Mustang 5.0 LX 11.45@122.34 Join Date: Jul 2008 Location: Lakewood, CO Posts: 344 iTrader: 0 reviews	for sure __________________ Old setup 93 cobra motor, supporting mods, 11.5psi out of V3 S-Trim made 422.5rwhp and 450 rwtq ran 12's at 5800 ft above sealevel new setup 347 on 11psi made 616.9rwhp and 576.0rwtq

November 29th, 2010, 09:00 PM	#2
MacGuyver2978 Newbie 1989 Foxbody LX Notchback 11.67 @121.4 Join Date: Nov 2010 Location: Bowdon, GA Posts: 11 iTrader: 0 reviews	I'm not sure what the proper name of it is but change the castle top looking thing in the distributor that's just under the rotor. I had a 94 gt that came real close to me pulling my hair out doing the exact same thing you are talking about. I was just about ready to change the whole distributor even after I had already changed everything inside it except for the castle. I decided to change it before a distributor was bought and the fixed the problem.

November 30th, 2010, 12:20 AM	#8
moneymo Premium Member 1991 Mustang Gt 5.0 Join Date: Sep 2010 Location: Grayson, GA Posts: 197 iTrader: 0 reviews	Keep us posted bro __________________ 91 Mustang Gt 306/Under Drive Pulleys/gt40 heads/ so many more goodies

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