Yes, while the engine is running (in park) spray gumout/carb cleaner along the egdes of the intake. If the motor runs smoother or better then that tells you the intake is leaking. This, however, could cause a fire. A safer way is to use an unlighted propane torch. Turn the fuel on low and slowly move it along the hoses and gasket surfaces. When the engine speeds up, you have found your leak. if you are not sure if there is a leak in the intake ;a good way is when the engine is at idel carefuly place a rag over the carb or throttle body slowley closing the opening ( hold the rag tightly )while slowley placing the rag over the intaks ; if you notice an increase in RPM then you probley have a vacumm leak; to help pin point the leak use a spray with water and slowley go around the base of the carb ;manifold and vacuum lines when the RPM'S increase check that area for leaks ; cracked vacuum lines ;intake gaskets leaking this should help
Depending on what engine you have, Intake manifold; vacuum leaks, coolant leaks internal and/or external, oil leaks. Exhaust manifold; exhaust leaks, backfires.
Yes. Antifreeze is actually pumped through the intake manifold. If the gasket is bad it is possible that it leaks out
your engine will run too lean.
Check for leaks in the intake manifold or a poor fuel pressure situation.
Check for vacuum leaks. The gasket was known to blow out between the throttle body and the intake manifold.
Not that I've heard of. Replacing the gaskets and inspecting the manifold for warping or cracks is the best way to stop intake vacuum leaks.
Intake manifold leaks will cause the engine to idle rough and get poor fuel economy. An exhaust manifold will have no symptoms other than the sound of the leak.
Could be the intake manifold gaskets are leaking.
Intake manifold gasket
Have the head gaskets checked and intake manifold gaskets checked for leaks. The 3.4's are known for head and intake leaks! Or a bad thermostat.
start by checking the master cylinder break booster by unplugging the vacuum hose connecting it to the intake manifold and capping it, if it starts easier you might have an internal failure in the booster. If not, check for leaks in the hose its self and manifold leaks.
replace the air idle control sensor on the throttle body ********* also check for vacuum leaks, hoses fallen off or deterioriated, or intake manifold gasket
If the intake manifold gasket has failed then it can cause many issues. Air leaks, known as vacuum leaks, will cause an erratic idle, stalling, and fuel problems.
cry because its probaly lower intake manifold leaking which is 500-700 to fix
A good place to look for Coolant Leaks is around the Intake Manifold, as if the engine has recently started to run rough, this could be a definite sign of a bad intake manifold gasket. Unfortunately, the cost of this type of repair at the local Clip Joint can end up costing you $800.
Check for any leaks in the surrounding areas. It may be a leaking hose, exc.
IDLE CONTROL VALVE GONE BAD Check for vacuum leaks. In particular check for leaks in the PVC valve hoses. Follow the rigid line from the PVC valve (top of right rocker cover)back to a rubber TEE at the right rear corner of the intake manifold then follow the line from the TEE across to a rubber ELBOW on the left corner of the intake manifold. Check both the rubber TEE and ELBOW for ruptures that will allow for a vacuum leak.
check for exhaust leaks around the manifold inlets and outlets.
It has been my experience that most backfiring problems are cause by intake vacuum leaks. You might want to check the torque on the intake manifold retaining bolts or it may be a worn intake manifold gasket. You might also want to inspect the vacuum hoses for cracks or loose connections. You might also check the timing. If the timing is off, it can also cause backfire and starting problems.
I would suspect the manifold itself is leaking around the cooling passages. It will need to be removed and the gasket replaced.
Check for vac leaks. A can of starter fluid helps. When you hit the sweet spot, you will hear the difference.
If you are talking about the EXHAUST manifold then most of the time it's the valve cover gasket that is leaking oil. REPLACE VALVE COVER GASKETS. If you are talking about the intake manifold then it has 2 rubber gaskets in the front and rear of it that leak oil real bad. If oil is on the left are right top sides of the intake manifold were the valve covers are then it will be the valve cover gaskets that are leaking oil.
could be wires in ignition system bad or loose, or intake manifold vacuum leaks and in hoses, faulty engine contol system. for vacuum leaks, put oil around intake when running. if there is a leak then oil will suck in to intake.
loose or damaged wires in ignition system.intake manifold vacuum leaks in intake or hoses. or its not getting fuel to injectors.
check spark plugs cap and rotor, and ignition coil. check gaps on spark plugs.checkfor blue fire getting through plug wires.ifso check egrvalve could be stuck open. check for intake manifold leaks. if egris good and no leaks are found check fuel pressure from pump. if fuel pump and filter are good check each injector for operation. they should open when interjized.