Hello, as you can see my car has decided to be a FORD (Fixe Or Repair Daily HAHAHAHA), new thing appeared yesterday, so I start cold in the morning, all smooth (well as smooth as it gets), then I drive, all goes well, I park and go do something, car cools down but not fully as I'm not off an about long enough, I start again, big hissing sound from the headers side next to firewall and very bad idling. I rev it, there's an exhaust leak, I can see and smell the fumes... How can I tell exactly where the leak is from? Headers or linkage to exhaust line? My car came with a new header in the trunk so maybe I should just swap it and change the gaskets etc? Is it a tough task? Lastly since I left my car at a shop to change the Engine Mounts it's been shaking and vibrating weird at cold idle, and now with this leak becoming obvious I am wandering if there's any chance they've damaged something while doing so or total coincidence it started at the same time?
So no tip on how to be sure where the leak is from? Visually it seams to hard to precisely pin point so not sure how to get on with it except "in doubt just replace the header" thing?
I would be more inclined to think it is a vacuum leak due to the idle quality being affected. I have never had an exhaust leak affect how the car ran other than the noise. I have also never heard an exhaust leak hiss, but I have heard plenty of vacuum leaks hiss.
that is honestly what I was thinking too as I had an exhaust leak on my previous car and the symptoms were very different but the exhaust fumes smell and smoke made me think that. But if I'm not the only one with a first impression about a vacuum leak I'll head back this way. So checking if all the lines are good? The fact that it only happens when restarting the car hot but not when cold? And the fact it kinds of stops after running the car for a little while? Could a vacuum leak be more important than just a bad vacuum line like some hardware or seal somewhere? Thanks for your answer man
So I've look on line and yes it does def sound like a Vacuum Leak, so a Vacuum leak can also come from other parts than vacuum lines like intake manifold gasket? Any other parts I should look around?
Vacuum leaks also cause the engine to run lean as air is being introduced into the engine without flowing through the carb. Disconnect all your vacuum lines from the engine and plug them at the engine. If you still have a vacuum leak use some Berrymans B12 carb cleaner and spray around the carb, carb base, vacuum fittings/trees, pcv, intake, brake booster, distributor diaphragm, and any other places were vacuum is applied. When you spray the leak, it will temporarily seal it, and the idle quality will momentarily return to normal and/or increase as the B12 is pulled into the engine and combusted.
So I've spotted a couple of leaks around the carb, first, easy one, the carb's different parts are a bit loose so I may just get a rebuilt kit and overhaul the sucker. Second, that fabric covered hose on the pick leaving the carb from the tom is broken at the base where my finger is on the 2nd pic, like literaly not connected to anything anymore, so if it is also a vacuum line it's a good idea of the perp. I couldn't spot where it is suppose to be connected though yet, any leads? Is it a part easy to just replace? Was it a vacuum line?
quick question, is it worth it to find a rebuild kit for my single barrel carb that looks in rough shape (that broken line, the base that seams to be jiggling from the top part etc...) as it has 160000 miles on it? Or should I just get a new one and if so which would you recommend? Or of rebuilding it is a good idea which kit would you recommend? Thanks!
and it's in a position that doesn't seam to go anywhere but way lower there's a hole on the headers, which goes nowhere either but as that broken pipe is just hanging there my guess is it's been broken since I baught it so not sure it is the actual perp, except if the hole on the header has been plugged by previous owner and now said hole is not plugged anymore by accident?
The line with the fabric covering looks like the choke heat tube. As the exhaust manifold heats, it warms the air in the tube which heats the choke spring and slowly begins to open the choke as the engine warms. One end hooks to the choke housing and the other end fits into a hole in the exhaust manifold. It should not have any vacuum, unless there is a leak within the choke housing. Auto parts stores use to have generic choke tube repair kits that included the fitting and tube. Would not hurt to have it connected but it should not be causing your leak. A new carb is probably unnecessary. One kit is probably as good as another. Call the auto parts and see if they have a kit available, they will probably have to order one. If you are going to rebuild it, buy a can of Berrymans Chem-dip to soak some of the carb components in to remove any build-up.
Thanks for all those info, so I'm still looking for a major leak somewhere else then But I still feel the carb needs rebuilding as its various main core components are not tight fit and the visibly move around. Just a last question, if my carb is not fully at fault and all vacuum lines seam to be ok, the intake manifold and its gasket are next on the list of possible leak sources? Any other components or parts I should look at?
so even if it needs some attention that wouldn't be the cause of my vacuum leak? Gotta find a way to pin point it...
