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Re: Manifold part name?
It's a vacuum switch , the 'AC' is for AC / Delco , and the 'carberator' (sic) is a throttle body. The switches function is to regulate the flow of vacuum , and I am thinking it is the one that operates the trans kick down , though I may be wrong there. You can get the whole upper manifold from a salvage yard for cheaper than replacing the switch... Hollander part number 329-1488 , $15.00 . The 3.1 was a common engine used in a whole bunch of GM cars so availability is there. Call a salvage yard and ask for that number ; 329-1488 , and you'll get a better deal than just asking for a manifold because it will save them the 'trouble' of looking it up.
Don't know your zip , or I would include a link and pricing for your area on one.
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Ticking noise coming from the manifold? There are two types of manifold....1. Instake manifold and exhaust manifold. Please indentify and apply as needed.
1. Double check the nuts and bolts around the intake manifold if you worked on it and had it serviced.
2. Spark plugs loose. Yes!! I've seen this before and it comes the rear of the manifold..very confusing.
3. Check your valves and have them adjusted. (This will require a trained and qulified mechanic).
4. Check your motor oil and power steering pump fluid.
1. Check for loose nuts and bolts.
2. Check the O2 sensors connections...some models have 2-3. They are the sensors sticking into the pipes.
3. Your catalytic converter may have a defect. If possible, remove it and shake it to determine failure. (I've seen and experienced the so called honeycomb inside it breakign apart.)
4. Check the exhaust manifold heat shield if applicable.
There are 2 o2 sensors on the caravan upstream+downstream
The downstream sensor is located on the exaust pipe at the
converter. As I don't know what engine you have, the upstream
sensors are located as follows
2.4 on exaust manifold firewall side of engine
3.0 on manifold near alternator
3.3+3.8 center of manifold firewall side
the only sensor that would be on your manifold would be the o2 sensor ihave an intrepid i have four, two converters. 1 before each converter and 1 after each converter. fronts are 1s and backs are 2s all are 4 prong maybe your backs are threes you will need to investigate a little more after all we are dealing with pretty much the same car same year
PCV BasicsPCV stands for Positive Crankcase Ventilation. All car engines have a PCV valve and it is located on top of the motor's valve cover. There is a vacuum line attached to it. It pulls out of the valve cover and if you shake it, you should hear a marble knocking inside it. If you shake it and don't hear anything, it's bad. It costs less than 5 bucks to replace.
If its the V6 then its that small black box on the driver side of the air cleaner with that green three prong plug attached to the bottom, the vacuum line attaches to the "front" of the throttle body near the intake manifold.