why is the check engine light on in my 2001 chevy s10?

Question

the code is P0410

Answer 1

Could mean anyone of the following:
Cam Sensor failure
Cylinder Select Error
Tach input error.

Answer 2

The only way to know why the light has come on is to have the car hooked up to a diagnostic machine that will get the data from your car's computer chip. Many times the light comes on due to a sensor failure, such as an oxygen sensor in the emissions system for example.

If your gas cap is not on tightly this can also cause a check engine light. I would check your owners manual for the possible reasons and solutions for the light being on.

Answer 3

cle's advice is WRONG. The state inspectors will immediately determine that a trouble code is stored in the computer and they will fail your inspection. The secondary air injection system is a series of hoses and an air pump. It blows outside air into the exhaust manifold to help complete combustion of the exhaust before it reaches the catalytic converter. There's a mess of issues with this system from something as minor as a blown fuse to water that's gotten inside the pump and corroded it. This really isn't a do it yourself repair, unless you want to start throwing parts at the problem. I know money is tight, but you really will be money ahead if you find a good shop that has knowledge about this particular problem. Call around and ask them specifically if they've worked on the S-10 secondary air injection system. Also ask them if they are familiar with the 2 GM Technical Service Bulletins on this issue. If they are, tell them your husband is in the service and ask if they offer a service discount.

Answer 4

Subject: Check Engine Light On, DTC P0410 Set (Replace AIR Pump, Install New Hose Assembly) #04-06-04-015 - (03/22/2004)



Models: 1999-2003 Chevrolet Blazer, S10

1999-2001 GMC Jimmy

1999-2003 GMC Sonoma

1999-2001 Oldsmobile Bravada

with 2.2L or 4.3L Engine (VINs 4, H, 5, W -- RPOs LN2, L43, L35)




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Condition
Some owners may comment on the check engine light being illuminated. Upon investigation, the technician may find a DTC P0410 indicating that there is a concern in the secondary air injection system.

Cause
Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump.

Correction
Replace the AIR pump and install a new inlet hose and solenoid tube assembly using the following procedure:

Prep vehicle.
Raise vehicle on hoist.
Remove shield covering AIR pump.
Remove hose and vacuum lines from pump and solenoid.
Remove AIR pump inlet hose. Do not re-use.
Disconnect electrical connectors from pump and solenoid.
Remove pump mounting bolts and pump.
Transfer isolators from the old pump to the new pump.
Install new AIR pump and bolts to vehicle.
Tighten
Tighten the bolts to 17N·m (12.5 lb ft)

Route new hose assembly up between engine and fender. It should come up near the area between the battery and the coolant bottle.
Connect new inlet hose to pump inlet.
Connect old outlet hose to pump outlet.
Connect electrical connector to pump.
Connect electrical connector for solenoid to connector on the new hose assembly.
Connect the hose with the white nipple to the vacuum source hose.
Connect the remaining hose to the shut off valve.
Install shield covering AIR pump.
Lower vehicle.
Remove coolant reservoir nut nearest the battery.
Route new hose assembly between the battery and the coolant reservoir with the solenoid on top.
Install the solenoid bracket onto the coolant reservoir stud and reinstall the nut back into the vehicle.
Use a wire tie to keep the new hose assembly away from the engine. On four cylinder engines, tie to the AIR outlet hose. On six cylinder engines, tie to an available hole in the radiator fan shroud.
Parts Information
Part Number
Description
Qty

12590627
Hose Assembly - Secondary Air Injection
1

12568324
Pump, Secondary Air Injection

2001 L35

2000-2003 L43/LN2
1

12560095
Pump, Secondary Air Injection

1999-2000 L35

Answer 5

It could be many things. If you can, take it to a mechanic who will hook it up to a computer to diagnose it. A lot of times it is nothing really and you can continue to drive with the light on. My old car was driven for 3 years with the light on. But it is the start of some problem, no matter how minor, and it is better to get it fixed now before it become worse and more expensive!

Answer 6

I don't know, you need an obd reader to get the code. Some parts stores, such as Auto Zone, will read the code as a free service.

Answer 7

I had the same thing happen to my s10 and it was a coil pack went bad I just replaced it and it fixed it

Answer 8

1 try tightning your gas cap
2 the switch got stuck and it might turn off on it's on
3 have you rinsed out the motor

Answer 9

maybe you have a problem. like no oil, no water, engine belt broken. There must be something wrong with your engine.

Answer 10

Because the dealer wants you to bring it in so they can find something wrong and charge you $967.00.