How to replace air injection pipe on 1997 mountianeer

Check all air pipes for cracks/breaks or plugging.

1) There could be an air lock to the fuel system, try to bleed the system.
2) If the fuel is reaching the injector pump & not supplying to the injectors nozzles thn the pump needs attention.
Hope this helps!

That's s failure of the secondary air pump. It'll have to be changed. It's an emissions component meant to help with cold start emissions. It won't cause engine running trouble but at inspection time you'll fail for smog. Change it before then and you'll be fine.

16795/P0411/001041


if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } 16795/P0411/001041 - Secondary Air Injection System: Incorrect Flow Detected Possible Symptoms

• Malfunction Indicator Light (MIL) ON

Possible Causes

• Fuel Pump Relay (J17) faulty
• Hoses/Pipes to/between Components faulty/clogged
• Secondary Air Injection Pump (V101) faulty
• Secondary Air Injection Pump Relay (J299) faulty
• Secondary Air Injection Solenoid Valve (N112) faulty

Possible Solutions

• Check Fuel Pump Relay (J17)
• Check Hoses/Pipes to/between Components
  • Check Secondary Air Injection Hoses/Pipes for Carbonization
• Check Secondary Air Injection Pump (V101)
• Check Secondary Air Injection Pump Relay (J299)
• Check Secondary Air Injection Solenoid Valve (N112)

the air pump is located on the engine towards the front of the vehicle and has apx. 3/4 diameter pipes running to and from it. it is apx. 2 fists in size and it is black plastic. one of the lines on top of the air pump runs to the other side of the engine towards the firewall. at the other end of that pipe is the valve. disconnect that pipe while the vehicle is running. no air out of the pipe means bad pump. air coming out of the pipe means bad valve

http://img245.imageshack.us/img245/39/218488404lv.jpg
http://img241.imageshack.us/img241/4642/443329838do.jpg

And some instructions

Removal Procedure

Caution: Allow the engine to cool before servicing the secondary air injection AIR system in order to reduce the chance of severe burns.
1. Remove the clamp from the check valve.
2. Disconnect the AIR hose from the check valve.
3. Remove the check valve from the left side AIR pipe.
4. Remove the left AIR pipe from the exhaust manifold.
5. Before replacing a check valve, test the valve for proper operation.
5.1. Install a vacuum pump to the nipple side of the check valve, AIR pump side.

5.2. Pump the vacuum pump to 10 inches Hg and observe the gauge.

5.3. Replace the check valve if the vacuum bleeds down to zero within 5 seconds.


Installation Procedure

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

1.Install the check valve onto the AIR pipe.
Tighten the check valve to the AIR pipe to 23 N·m (17 lb ft).
2.Connect the AIR pipe to the exhaust manifold.
Tighten the AIR pipe to the exhaust manifold to 20 N·m (15 lb ft).
3. Install the AIR hose to the check valve.
4. Install the check valve clamp.

When you do a cylinder leak down test you need to find out where the air is leaking from. as air is going in listen at the tail pipe, the intake the and the oil cap. out the the tail pipe you have a bent exhaust valve, out the intake you bent the intake valves, out the oil cap you need new rings. You need to have that cylinder on top dead center of compression stroke. Hope this helps you

ON CERTAIN CARS YOU HAVE TO JUST REPLACE THE CLUSTER, THE EASY OPTION OF JUST REPLACING BULBS ISN'T ALWAYS AVAILABLE FOR ALL CARS

There's a black plastic valve below the battery that fails frequently on these cars. It has a vacuum line and 2 thumb-sized hoses going to it. A lot of times the valve will be broken in half and obviously bad. This will cause a secondary air injection code. Also the vacuum hose to it needs to be intact. Check this stuff first.

Hi,
the only permanent solution to your problem is to replace ALL the O-rings on the injection pump fuel lines. Don't forget the one behind the fuel cut-off valve as well..
This is the only soltion that really worked for me.