SAAB WIS ONLINE

(248-2492) Reduced performance and diagnostic trouble code for the EGR valve

Symptom: Reduced performance. Diagnostic trouble codes P0400, P0401 and P0402 may be generated.

TECHNICAL SERVICE BULLETIN
Bulletin Nbr: 248-2492
Date: ........... September 2004
Market: se separat lista
Reduced performance and diagnostic trouble code for the EGR valve

Cars affected

Saab 9-3 (9400) with engine alternative D223L.

Saab 9-3 (9440) with engine alternative D223L.

Saab 9-5 with engine alternative D223L.

Background

Under certain driving conditions, such as with a lot of city driving, increased carbon deposits may mean that the EGR valve seizes or jams in open position. This can result in reduced performance for the car as the boost pressure leaks out via the EGR valve. In some cases, diagnostic trouble codes P0400, P0401 and P0402 may be generated.

Symptom description

Reduced performance. Diagnostic trouble codes P0400, P0401 and P0402 may be generated.



Parts required

53 38 215 O-ring (chassis No. -12020000)

93 172 881 O-ring (chassis No. 12020001-)

Solvent, e.g. Bräkleen degreasing agent, solvent naphtha or similar.

Procedure

Cleaning the valve is usually sufficient to solve the problem.


1. Remove the EGR valve in accordance with WIS - Model selection - Engine - Exhaust emission control system, diesel - Adjustment/Replacement - Control valve, exhaust gas recirculation 4-cyl. Check whether carbon has formed on the shaft that runs up into the valve.

2. Clean the shaft as necessary by spraying on a solvent e.g. Bräkleen degreasing agent, solvent naphtha or similar. Use a soft paintbrush to remove the carbon.

3. Chassis No. -12020000: Fit the EGR valve and clear any diagnostic trouble codes. Use a new O-ring. Test the engine at idling speed. Use Tech2: Diagnosis - Engine - EDC15 - Activate - EGR valve and check that the tone of the engine changes at activation. Test drive the car.

Chassis No. 12020001-: After cleaning, connect the EGR valve's connector and test the valve separately before fitting. Use Tech2: Diagnosis - Engine - PSG 16 - Activate - EGR valve. Check that the valve closes/opens. Fit the EGR valve and clear any diagnostic trouble codes. Use a new O-ring. Test drive the car.


Warranty/Time Information

In the case of customer complaint and if the car is within the warranty period , use the following information to fill out the claim:

Failed Object: 25430

Fault/Reason code: 08

Location code: 09

Repair/Action code: 07

Time: 0.3 hr.