ATTN PKRWUD: Got a BAD MISS

Coupe Devil · 08-05-2002, 10:17 AM

Ok, I had a miss starting to come up recently so I figured it was time for a tune up. I figured that the motor still ahd the stock plugs and wires ( and I was correct ) So i bought a set of Autolite ( stock replacement ) plugs, an Accel cap and Rotor ( with Brass inserts ) and a set of universal ( the kind that you cut the ends to length and install the ends) Accel 8mm plug wires. Get it all installed and go for a test drive last night.. Miss is still there but not as evident. Used to only miss alittle under a load. ( driving hard ) and that was gone for the most part last night so I say COOL. This morning I leave for work and it runs like a dying mule, I dont get it. I didnt do anything to it lst night after I drove it. The miss is much worse now and happens all the time unless you are really into the throttle.. What do you guys think. Do I need to go get some regualr ole plug wires? Any ideas, think it might be fuel related or is it in the firing like I think?

Need Help fast...

Bradley

Lethal5Oh · 08-05-2002, 12:58 PM

You could check fuel pressure. I would definitly check your firing order. Also check to make sure that all the connections on the plugs and the cap are tight and that the plugs are tight. I just did a tune up with a Performance distributors ignition kit and i found that one of the plugs was in only acouple threads. I just got some wire seperators and found that a plug wire and come off the plug. I had a bad miss thru the driving range. Also check your coil. It could be shot. Check the resistance between the primary terminals, secondary terminals. Hope this helps.

Coupe Devil · 08-05-2002, 01:27 PM

I checked all the connections.. they look fine. I got some wire seprators with the kit.. As you know, there is not perfect way to route the wires so they arent crossed. I dont think its jumping fire though.. I drove the truck on lunch today. Stioll mmissed just not as bad.. How do I check the fuel pressure? It has not adjustable regulator.. I was thinkin about getting one for it but am leary now. I jsut need it fixed fast..

Bradley

Coupe Devil · 08-05-2002, 03:26 PM

Also in the next phase of hte tune up, I am going to change the fuel filter this afternoon and see if that helps.

Bradley

Fostang · 08-05-2002, 08:53 PM

Brad I think it's time you pushed it off the nearest mountain. Or that good old FOR SALE sign always works for me LOL

No actually could it be a bad TFI? Or Stator?

Sal

Coupe Devil · 08-06-2002, 08:48 AM

Ok folks.. I figured out what it was.. First off it wasnt missing. There was a BAD exhasut leak.. it was bad enough to make the truck run bad but the location sounded like a miss. It was actually the " Smog Tube "( I guess thats what its called ) that goes between the back of both heads and has the valve thingy in the middle... Well tthat valve had a slight hole in it.. I was looking around under the hood and reached to the back of the engine and broke it off completely... Then it REALLY got bad. So I put a new smog pipe on and were close to good as new.. Still got just a little bit of hesitation but its alot better.

Bradley

08-05-2002, 10:17 AM	#1
Coupe Devil Moderator Join Date: Mar 2001 Location: Myrtle Beach SC Posts: 1,643	ATTN PKRWUD: Got a BAD MISS Ok, I had a miss starting to come up recently so I figured it was time for a tune up. I figured that the motor still ahd the stock plugs and wires ( and I was correct ) So i bought a set of Autolite ( stock replacement ) plugs, an Accel cap and Rotor ( with Brass inserts ) and a set of universal ( the kind that you cut the ends to length and install the ends) Accel 8mm plug wires. Get it all installed and go for a test drive last night.. Miss is still there but not as evident. Used to only miss alittle under a load. ( driving hard ) and that was gone for the most part last night so I say COOL. This morning I leave for work and it runs like a dying mule, I dont get it. I didnt do anything to it lst night after I drove it. The miss is much worse now and happens all the time unless you are really into the throttle.. What do you guys think. Do I need to go get some regualr ole plug wires? Any ideas, think it might be fuel related or is it in the firing like I think? Need Help fast... Bradley __________________ 1990 GT, 347, TFS TW Heads, TFS Cam, TFS Track heat, Twin turbos, FMIC, T5. Built Ford Tough Moderator Last edited by Coupe Devil; 08-05-2002 at 07:00 PM..

08-05-2002, 12:58 PM	#2
Lethal5Oh Registered Member Join Date: Jun 2002 Location: Portage Posts: 239	You could check fuel pressure. I would definitly check your firing order. Also check to make sure that all the connections on the plugs and the cap are tight and that the plugs are tight. I just did a tune up with a Performance distributors ignition kit and i found that one of the plugs was in only acouple threads. I just got some wire seperators and found that a plug wire and come off the plug. I had a bad miss thru the driving range. Also check your coil. It could be shot. Check the resistance between the primary terminals, secondary terminals. Hope this helps. __________________ '95 GT convert. K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes

08-05-2002, 01:27 PM	#3
Coupe Devil Moderator Join Date: Mar 2001 Location: Myrtle Beach SC Posts: 1,643	I checked all the connections.. they look fine. I got some wire seprators with the kit.. As you know, there is not perfect way to route the wires so they arent crossed. I dont think its jumping fire though.. I drove the truck on lunch today. Stioll mmissed just not as bad.. How do I check the fuel pressure? It has not adjustable regulator.. I was thinkin about getting one for it but am leary now. I jsut need it fixed fast.. Bradley __________________ 1990 GT, 347, TFS TW Heads, TFS Cam, TFS Track heat, Twin turbos, FMIC, T5. Built Ford Tough Moderator

08-05-2002, 03:26 PM	#4
Coupe Devil Moderator Join Date: Mar 2001 Location: Myrtle Beach SC Posts: 1,643	Also in the next phase of hte tune up, I am going to change the fuel filter this afternoon and see if that helps. Bradley __________________ 1990 GT, 347, TFS TW Heads, TFS Cam, TFS Track heat, Twin turbos, FMIC, T5. Built Ford Tough Moderator

08-05-2002, 08:53 PM	#5
Fostang Registered Member Join Date: Feb 2001 Location: Stockton, Ca Posts: 599	Brad I think it's time you pushed it off the nearest mountain. Or that good old FOR SALE sign always works for me LOL No actually could it be a bad TFI? Or Stator? Sal __________________ 67' Fastback-Supercharged 4.6 DOHC Cobra, T-56, 8.8 more to come. 67' Coupe-EFI, AOD, 8.8 90 Gt-Supercharged,MAF,TB,1.7's ripper, bassani x, 3.55's, 01' cobras, headers. 89'GT-Supercharged,Heads,Cam,Intake,TB,MAF,power pipe,headers,offroad exhaust,black bullits.

08-06-2002, 08:48 AM	#6
Coupe Devil Moderator Join Date: Mar 2001 Location: Myrtle Beach SC Posts: 1,643	Ok folks.. I figured out what it was.. First off it wasnt missing. There was a BAD exhasut leak.. it was bad enough to make the truck run bad but the location sounded like a miss. It was actually the " Smog Tube "( I guess thats what its called ) that goes between the back of both heads and has the valve thingy in the middle... Well tthat valve had a slight hole in it.. I was looking around under the hood and reached to the back of the engine and broke it off completely... Then it REALLY got bad. So I put a new smog pipe on and were close to good as new.. Still got just a little bit of hesitation but its alot better. Bradley __________________ 1990 GT, 347, TFS TW Heads, TFS Cam, TFS Track heat, Twin turbos, FMIC, T5. Built Ford Tough Moderator

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