on the 2001 gmc jimmy 4.3L v6 engine there are two air pump check valves: there's a pipe (about 1" diameter) that comes off each of the exhaust manifolds. the check valves are screwed onto those pipes. then a rubber hose (about 1.25" outside diameter) is clamped to the front of each check valve and connects to the air pump, which is hidden behind the vehicles grille in front of the radiator. typically, if you need to replace these (the life expectancy is about 3-4 years), it starts a chain of events that might be as follows: during the wintertime, water from the exhaust leaks through the worn out one-way check valves, and ends up in the air pump. the water freezes, and the ice jams the air pump, which may or may not ruin the air pump, but which usually blows the air pump fuse, which is impossible to find if you're rummaging around the passenger compartment fuse box or the under-hood fuse and relay box. it ain't there! so if you're looking under the hood leaning up against the front bumper, slide to your left around the passenger side headlight. now you should be looking at the battery, leaning up against the passenger side fender. look down between the battery and the fender. you have to push a few things out of the way, but there you will find a green 30 amp blade fuse (about 1" x 1" fuse--and $2.99 at autozone). this blown fuse should have triggered the check engine light and a dtc (diagnostic trouble code) of p0410 (secondary air injection system). for that vehicle there is a tsb (technical service bulletin) put out by gm (bulletin # 04-06-04-015; march 2004). if you want to print out some literature about all that I've mentioned just surf on over to http://www.obd-codes.com/p0410 for more links and documentation. my credentials: self-proclaimed auto mechanic for 26 years (sorry, no ase certification yet [but still trying to find time to study for the tests]) and college dropout (after 3 years of electrical engineering)--so, in other words, don't believe a word i say; just go to that website and get it straight from the horse's...
heater control valve located on 2001 gmc jimmy 4.3l
The EGR valve on the 2001 Mercury Mountaineer is located on the engine block just to the left of the intake manifold. The damaged valve will cause the check engine light to flash.
where is the pcv valve located on zuzuki esteem 2001
PCV Valve is located on the Right Valve Cover.
where is the pcv valve located at and what does it look like on a 2001 infinity qx4?
where is the pcv valve located on a 2001 buick lesabre
The PCV valve is located in the valve cover.
The PVC valve on a 2001 Maxima is located in the rear valve cover just behind the throttle body.
The EGR valve is located on the driver's side of the engine on a 2001 Pathfinder. It is near the throttle body.
The 2001 Honda Odyssey EGR valve is located on the outside of the air cleaner housing. You will find the valve, on the back of the housing.
There is no dipstick for the transmission. It has a check valve on the side of the pan.
The heater valve is located inside the heater box.
its located in the valve cover
It doesn't have an egr valve.
where is the pcv valve located on a 2001 chevy suburban It is stuck in a rubber hose and pushed into the top rear drivers side valve cover.
The EGR valve on a 2001 Astra 1.8 SRI is located on the intake manifold. It is at the rear of the engine.
where is valve cover located on a 2001 Pontiac Grand-Am 4 cyl
If like my 2000, it is on the left valve cover. it is too cold to go out and double check.
The pcv valve should be located on the top of the valve cover. It is located closer to the rear of the motor.
where it the temp sensor sender located on a 2001 gmc Jimmy
You need to CHECK the EGR Valve.
Where is the EGR unit located on a 2001 Chevy Impala? picture please
* The PCV valve is located in the valve cover. * Detach the hose from the valve cover and pull out the PCV valve
The PCV valve for a 2001 Buick LeSabre is located in the top of one of the valve covers. It is a plug in unit and is easily changed.
It is located on the side of the valve cover on the side where the battery is. It screws in and is a dealer only part.