Need Help Please Engine Runs Crappy

[cleviescustoms]

My 1996 Sho Runs Crappy.it Runs Like Its Out Of Time But No Cam Trouble.i've Had It On A Snap-on Computer And It Wont Give Any Codes.what Could Be Wrong?i Have To Hold It To The Floor To Keep It Running,and It Wont Idle.could This Be Coils Or The Plug Boots Or Pray That It Will Heal Its Self.the Sho Has Been Siting For About 6 Months Now Due To This Problem,it Has 38 P.s.i. Of Fuel Pressure.please Sum1 Help!!!!!!!!!!!! Thanx For Any Info.

 

[SHO#7]

My 1996 Sho Runs Crappy.it Runs Like Its Out Of Time But No Cam Trouble.i've Had It On A Snap-on Computer And It Wont Give Any Codes.what Could Be Wrong?i Have To Hold It To The Floor To Keep It Running,and It Wont Idle.could This Be Coils Or The Plug Boots Or Pray That It Will Heal Its Self.the Sho Has Been Siting For About 6 Months Now Due To This Problem,it Has 38 P.s.i. Of Fuel Pressure.please Sum1 Help!!!!!!!!!!!! Thanx For Any Info.

If I may ask, how do you know that the cams are ok?

 

[ncfirefighter]

i agree with sho#7 second you could have a cracked vacuum hose that will mess with the idle bad i did.

 

[NiNeTy Fo SHO]

What exactly happens? It wont idle but runs ok when in drive and going down the road? It runs rough all the time on the gas or not? Have you drivin it much since its been sitting? Any noises coming from the engine? If there are, do they get louder with the rpms?

 

[cleviescustoms]

it runs crappy all the time it will not drive because of such power lost.it runs like its out of time.the manifolds and exhaust turn red.the exhaust has been drop and ran the car with no exhaust still runs the same.thought maybe the exhaust was stopped up. still no luck

 

[cleviescustoms]

the dealer said they where fine.that the car was still timed correctly?you no how dealers are,it may have never been looked at.

 

[cleviescustoms]

the engine has no noise at all, no valve noise or any signs of mechanical failure.it runs like its out of time or a major vacuum leak but havent found a leak yet.

 

[ncfirefighter]

on one of my taurus i had a line that was under the intake and god did she run like crap it was hard starting would not start when she did she missed real bad check engine light would come on. it was a mess autozone pulled a code bank 1 and bank 2 running lean. so i change to o2 sensors no luck and i was looking around on it to see how hard it was to change plugs and found a vacuum line off and busted and i changed that and she cleared up and the running lean code was she was sucking to much air in to the surge tank.

 

[cleviescustoms]

on one of my taurus i had a line that was under the intake and god did she run like crap it was hard starting would not start when she did she missed real bad check engine light would come on. it was a mess autozone pulled a code bank 1 and bank 2 running lean. so i change to o2 sensors no luck and i was looking around on it to see how hard it was to change plugs and found a vacuum line off and busted and i changed that and she cleared up and the running lean code was she was sucking to much air in to the surge tank.

thanx,this sounds just what mine is doing.I'll check closer,maybe I'll take the intake off to get a better look.thanx

 

[SHO#7]

Pull your front vanity cover and do a compression check. If all is good, pull the intake and do one on the rear set of cylinders. I HOPE all is good for you.

Mike

 

[ncfirefighter]

thanx,this sounds just what mine is doing.I'll check closer,maybe I'll take the intake off to get a better look.thanx

before i brake the seal on the gaskets i would look right under the throttle body unit to and i would look right behind the surge tank there are some hose there that do get hot and get very brittle i have one that needs to be replaced real soon. then if you dont find nothing get your gaskets and take it off and and inspect all them hoses

PS check everything on the air intake system it just takes a small crack or lose hose to cause a head ache. i learned the hard why i have replaced all kinds of thigs on a car and spen hundreds and come to find out all it was a cheap hose.

if that is not it or you dont see nothing do what sho#7 said do a compression test.