This is topic bout to blow this 5.0 up in forum Tech Talk at Northern California Ford Owners .
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Posted by svt_etr (Member # 9616) on
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converted to the ford side and this car wont stop giving me problems now. hopefully you guys can help me.
alittle about the car. when i first got it ran strong. but had a vacuum leak so it would run idle to high sometimes. my clutch ended up going out. so car sat for a few weeks. put a king cobra clutch in it. then my alternator went out. fixed it. at the same time my tension pulley gave out. so i fixed that to.
when i was fixing the tensioner i found the vacuum leak that was from the back of the intake that led to this little thing on the driver side some have rubber caps, and some are running somewhere. the one that was ripped runs to a nipple connection that has an "S" on top of it.
so with all that car started to run decent. clutch still needs adjustment but i was able to drive it.
the car has an msd 6a box. when i disconnect it the car will not idle or it will but bairly stay on like at 400rpms. i connect it back with the connections that the previous owner has. and it will idle fine and i can rev it without it shutting off.
now heres the part thats driving me crazy. car is idleing now and running when i try to leave put it in first and give it gas. the car bogs like crazy and will bairly move. start backfiring and if i pump the gas ill get some rpms and it will move but then rapidly start bogging again and backfiring. i changed the fuel filter today. and problem persist. what can it be? fouled plugs? bad cap n rotor?
please help, im lost on this mustang.
Posted by phildog (Member # 1214) on
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Sorry about all the problems, been there, and done that. These these 5.0's age,they are more likely to have been beaten on and also, have been modified by more hacks.
Start with the basics, air, spark and fuel. Check fuel pressure, check your timing. Check the basic tune up parts. Sounds like you've gotten started on the vacuum leaks as well. Good luck.
Posted by svt_etr (Member # 9616) on
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yea i think ima pull all the plugs and see if they are fouled. ima try to get the fpg. shouldnt it be getting enough fuel if i can rev it as high as i want when im in neutral? i only encounter the problem now wen i try to drive it.
how do i check the timing? could it have maybe moved if i took off the cap n rotor to try n clean it? i didnt clean it with alot of pressure, and used a rag. could it be maybe that i cleaned it to much that caused damage without me knowing?
[ December 17, 2009, 06:59 PM: Message edited by: svt_etr ]
Posted by 84SVOrick (Member # 9039) on
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Check the coil and the tfi module
Posted by Sic Wit it 50 (Member # 4119) on
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Bogging backfiring try different mass air that was my problem n fixed it
Posted by Camara90 (Member # 134) on
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I got money on the mass air, or salt and pepper plugs behind the intake. Had a mass air go bad once and do the exact same thing.
[ December 17, 2009, 10:41 PM: Message edited by: Camara90 ]
Posted by svt_etr (Member # 9616) on
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car is an 87 so dont have mass air. i changed the spark plugs now. and same problem.
how do i check the coil and the tfs module? and probably a noob question. whats a tfs module? im used to having a coil for ever spark plug, and never a problem such as this one. haha/
the salt n pepper plugs i took them off and cleaned them. they had this nasty beige looking cream in there. maybe that electric jelly grease? idk. but i cleaned it. and im still having this stupid problem. o and i found on google what the tfi module was. how do i kno if thats bad?
[ December 17, 2009, 11:43 PM: Message edited by: svt_etr ]
Posted by 84SVOrick (Member # 9039) on
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Tfi module, located on the side of the dizzy
Posted by 96mysticman (Member # 8327) on
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timing is off
Posted by asskickn88 (Member # 4957) on
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Check your ground from the chassis to the engine. If you missed a ground wire that was bolted down on a bell housing bolt it could run like ass.
Posted by svt_etr (Member # 9616) on
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when i took off the tranny i didnt unbolt the bellhousing from the tranny. unbolted the whole tranny from the block and brought it down. when i took off the six bolts i didnt notice any ground strap. wait let me say that again. there is suppose to be six bolts. but my car has five lol. it seems there should be a middle bolt on the driver side of the bell housing. but there are only two on the driver side, and three on the passenger side. when i look at the motor from the top side i noticed a ground strap goin to the chassis but i didnt pay attention to wear it lead to. its one of those copper collor flat ones. i found the tfi thing. unplugd it and blew on it then put it back. but that didnt do shit, and didnt expect it to. but tried anyway haha.
could i have fucked the cap and rotor from trying to scrap off the crusty stuff inside?
if the timing is off. how did that happen? and how do i fix it on these cars.? if the timing was off wouldnt it not even run at all? i can get it to idle. but when cold it strugles and have to play with it for alil bit.
Posted by svt_etr (Member # 9616) on
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o and to add to the post above. for some reason my car sounds like it has a cam when its idling. i doubt it. but it idles way different then other 5.0s that i have heard. mayb its just misfiring like crazy. but before i had this problem i had that idle and when i rev it i didnt get any hesitation or anything. now i do. but idle is still the same (choppy)
also the guy i got it from said that the guy he got it from put roller rockers in it. idk how true that is i have to pull the valve covers soon anyway since their leaking.
Posted by asskickn88 (Member # 4957) on
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Do this, you can try the ground thing with a pair of jumper cables. Each end has two clamps, hook both clamps on one end to good ground points on the engine. Connect one of the other clamps to the neg side of the battery and the final one connect to a good ground in the engine bay. You want to make a solid, clean ground between the engine, neg terminal on the battery and chassis of the car. I've seen cars either run like shit or not run at all from a bad ground. I figure this is easy and would eliminate that as a problem quickly.
Posted by Rigo5.0 (Member # 5247) on
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I was going to say mass-air as well, but you don't have one.
I had a similar issue before when I swapped in new spark plug wires; I had a couple of them crossed. Remove all of them and put them back on, to make sure.
As mentioned, could also be your timing is off (if you removed the distributor).
Good luck!
[ December 18, 2009, 02:48 AM: Message edited by: Rigo5.0 ]
Posted by 95_svt_last_of_the_5.0 (Member # 9527) on
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JUST SELL IT..my boy said he got 100 cash!!! oh n a 50$ ebt card lol..4realz tho..think it over
Posted by svt_etr (Member # 9616) on
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thanks for the grounding tip ima try it and let you guys know, im also gunna check the orginal ground strap.
and for the guy with the weak ass offer u can take ur 100 bux n give em to ur mom. or if u want u can give me 100 bux n ill let u boss me!
Posted by 95_svt_last_of_the_5.0 (Member # 9527) on
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how bout i keep the 100 n let ur mom boss me then give her the ebt card?? deal?? then see if she could pick the card up wit her butt cheeks lol
Posted by svt_etr (Member # 9616) on
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ur mom already pulled that one off. thanks though ![[Wink]](wink.gif)
Posted by 95_svt_last_of_the_5.0 (Member # 9527) on
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lol haha damit u got me there
Posted by fr5.0 (Member # 8652) on
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when you "cleaned the cap" did you take the wires off of it?????
why didnt you just buy a new cap and roter its like $20??!!!
redo the wires!
Posted by svt_etr (Member # 9616) on
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no i didnt take off the wires when i cleaned it.. and i did buy a new cap n rotor today. the stupid problem persist! wtf?? i also tried that grounding tip with the jumper cables. it didnt work. im lost on what to do now???
[ December 20, 2009, 01:47 AM: Message edited by: svt_etr ]
Posted by Big block 66 f100 (Member # 8867) on
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where in the bay are you
Posted by svt_etr (Member # 9616) on
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san jose.
Posted by GTCONV86 (Member # 5385) on
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CHECK ALL YOUR GROUND WIRES!DOUBLE CHECK ALL YOUR BASCIS, KEEP IT SIMPLE FOR NOW.
Posted by svt_etr (Member # 9616) on
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haha thats what i have been doing. they seem fine. and i dont understand how they coulda got messed up if i didnt touch any of them?
earlier in the thread i said that it revved fine in neutral, but yesterday when i was messin with it. it jus felt like it was choking itself. like giving to much fuel and not enough spark. or idk. but it misses when i rev it. and the more i put the pedal down the more it seems like its not doing anything. for example i can have the pedal to the floor and the rpms sit at like 600. and if i play with it then yes rpms will go up like they should. (missfiring though)
Posted by Nastysvt (Member # 6431) on
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quote:
Originally posted by svt_etr:
the car bogs like crazy and will bairly move. start backfiring and if i pump the gas ill get some rpms and it will move but then rapidly start bogging again and backfiring. i changed the fuel filter today. and problem persist. what can it be? fouled plugs? bad cap n rotor?
please help, im lost on this mustang.
maybe its all the svt's you ate ![[Big Grin]](biggrin.gif)
I got one for you to have lunch with
Posted by svt_etr (Member # 9616) on
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lol. if i still had my maro i would be down. this lil 50 is not ready yet.
please keep bullshit post outta this thread. im trying to fix my car. not argue with kids.
when i installed the new plugs i called auto zone for the gap, and they told me .54 for some reason that seems wrong to me. any insight?
thx
[ December 20, 2009, 11:30 PM: Message edited by: svt_etr ]
Posted by Big block 66 f100 (Member # 8867) on
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quote:
Originally posted by svt_etr:
lol. if i still had my maro i would be down. this lil 50 is not ready yet.
please keep bullshit post outta this thread. im trying to fix my car. not argue with kids.
when i installed the new plugs i called auto zone for the gap, and they told me .54 for some reason that seems wrong to me. any insight?
thx
id go 48
[ December 21, 2009, 12:18 AM: Message edited by: Big block 66 f100 ]
Posted by SmokinLX (Member # 1684) on
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If You hav'nt chnged your fuel filter then try it. Real cheap & easy. Put a timing gun on it and make sure Your balancer is in ok shape. Don't give up on it .
Posted by svt_etr (Member # 9616) on
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ok i will regap them to that. also the balancer is the thing right behind the pulley correct? i think it has numbers itched on it? im not used to that kinda set up. what ever it is. it dosnt spin perfectly it seems to whobble alittle bit like if it were loose or something. but the main crank pulley spins fine. so im not sure why the back peice does that. could that have made my timing jump?
o and yes i changed my fuel filter that was the first thing i thought it was.
[ December 21, 2009, 04:22 AM: Message edited by: svt_etr ]
Posted by svt_etr (Member # 9616) on
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ttt
Posted by Big block 66 f100 (Member # 8867) on
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what kind of cars you use to
Posted by svt_etr (Member # 9616) on
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chevys.
mainly my ls1 camaro, thats the one i took apart and put back together. but it had a coil for eveyr plug, and didnt have this blancer in back of the crank pulley. i had two irocs, and the dist. is in the back not the front. and other misc european cars and asian ones. so yea im not to familiar with the mustang. alot is basic. but this problem has me lost.
Posted by JohnB (Member # 969) on
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Didn't see anywhere in the post where you checked the fuel pressure. I'd start with that.
Posted by 1965FALCOON (Member # 8773) on
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TRY PUTTING NUMBER 1 CYLINDER ON TDC TOP DEAD CENTER AND CHECK YOUR TIMING MARKS ON THE HARMONIC BALANCER THE TDC MARK SHOULD LINE UP WITH THE TIP OF THE POINT STICKING OUT JUST ABOVE THE BALACER ON THE PASSENGER SIDE OF THE MOTOR IF THATS ALL GOOD PULL THE CAP OFF AND MAKE SURE THE ROTOR IS LINED UP REAL CLOSE TO NUMBER ONE PLUG WIRE CONTACT IN THE CAP BY THE WAY SINCE YOU ARE USED TO CHEVYS I WOULD NOT WANT YOU SCREW UP WHERE NUMBER ONE IS SO THIS IS A SAYING I LEARNED LONG AGO IN RELATION TO WHERE THE NUMBER ONE PLUG IS FORD IS ON THE RIGHT SIDE CHEVY IS ON THE WRONG SIDE HAHAHAHA JUST TRYING TO HELP ALSO FORD AND CHEVY NUMBER THEIR CYLINDERS DIFFERENTLY SO CHECK GOOGLE FOR THAT THEY HAVE A GREAT PIC OF IT HOPE THIS HELPS REALLY SOUNDS LIKE A TIMING CHAIN JUMPED A TOOTH
Posted by svt_etr (Member # 9616) on
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thanks guys! yea i havnt checked the fuel pressure yet. i need to get a gauge. also i will try that the tdc method and make sure its all correct. if its not a timing gun will fix it? or will i need to pull ther dist?
Posted by 1965FALCOON (Member # 8773) on
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SORRY TO TELL YOU THIS BUT IF IT IS OFF YOU WILL NEED TO REPLACE THE TIMING CHAIN AS THEY GET OLD THEY STRETCH IF THEY STRETCH TO MUCH THE CHAIN CAN JUMP A TOOTH AND HAVE ALL THE PROBLEMS YOU HAVE DESCRIBED YOU MIGHT IF YOU WERE LUCKY BE ABLE TO RE STAB THE DISTRIBUTOR AND MAYBE SELL IT BUT IT WOULD JUST BE A MATTER OF TIME TILL IT DID IT AGAIN GOOD LUCK
Posted by svt_etr (Member # 9616) on
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so since you say sell it. im assuming puttin a new timing chain is really expensive???
im going to try and restab it tomorrow. so i can atleast drive the car.
Posted by svt_etr (Member # 9616) on
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ok so i have ben reading. i can probably pull off the timing chain swap. but it looks like its alot of work that i dont want to do. lol. but whatever i need this car runing so im going to have to do it. before i do though. can i fix it by restabbing the dist? i much rather do that then pull the whole front apart. also if i end up taking apart the front to fix that. what do i need? a chain. timing cover gasket, rtf sealent, and a front main seal? maybe water pump gaskets?
any heads up and help is greatly appreciated. my car is at my boys house so i prbably wont be on here much longer. thanks for the help in advance.
Posted by svt_etr (Member # 9616) on
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bump. any heads up for a timing chain swap before i do it? ima get the stuff and try to fix it tomorrow. or if anybody has a link with a wright up.??
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