How to properly service and replace the EGR Valve on Cadillac DTS?

A replacement of the exhaust gas recirculation (EGR) valve requires initial removal of fuel injector sight shield when required followed by disconnecting the engine harness electrical connector from the EGR Valve. The egr procedure starts by unscrewing both shield nuts from the egr bracket and then removing the bracket shield before pulling out the EGR Valve by removing its bolts. Discard the worn EGR Valve Gasket before you clean the egr mounting surface of the valve and inspect and clean egr passages inside the water pump housing. Apply new egr gasket before installing the EGR Valve which should be bolted in place with torque at 24 n.m (18 lb ft). Reestablish the egr bracket shield together with its nuts which need tightening to 10 n.m (89 lb in) before connecting the engine harness electrical connector to the EGR Valve and reinstalling the fuel injector sight shield if previously removed.

OEM Cadillac DTS EGR Valve

Emissions EGR Valve

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Cadillac DTS EGR Valve Part Number: 89060435
$101.58 MSRP: $316.92
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Product Specifications
- Other Name: Valve Assembly, EGR; EGR Vacuum Solenoid; Valve, Emission Control System
- Replaces: 88894013, 89017647, 12575313
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Cadillac DTS | Base, Livery, Luxury, Platinum, Premium | 8 Cyl 4.6 L GAS

Cadillac DTS EGR Valve

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Known for recirculating exhaust gases back into the combustion chamber thus reducing air pollutants, the EGR Valve, Clayton noted, is used in Cadillac DTS vehicles. It is useful in reducing emission of nitrogen oxides as a result of inert gas addition and reducing flame temperatures. Classic EGR technology was a simple orifice jet while the modern one is a special EGR valve responding to engine conditions. Just like any other device that truly wants to meet the emission requirement and also guarantee the efficiency of an engine, EGR might need to be cleaned or replaced because carbon build up occurs over time.

Cadillac DTS EGR Valve Parts and Q&A

EGR Valve
89060435
Q: How to properly service and replace the EGR Valve on Cadillac DTS?
A:
A replacement of the exhaust gas recirculation (EGR) valve requires initial removal of fuel injector sight shield when required followed by disconnecting the engine harness electrical connector from the EGR Valve. The egr procedure starts by unscrewing both shield nuts from the egr bracket and then removing the bracket shield before pulling out the EGR Valve by removing its bolts. Discard the worn EGR Valve Gasket before you clean the egr mounting surface of the valve and inspect and clean egr passages inside the water pump housing. Apply new egr gasket before installing the EGR Valve which should be bolted in place with torque at 24 n.m (18 lb ft). Reestablish the egr bracket shield together with its nuts which need tightening to 10 n.m (89 lb in) before connecting the engine harness electrical connector to the EGR Valve and reinstalling the fuel injector sight shield if previously removed.