Question about 2001 Volvo V70 XC
These codes contnue to come up, A foul smell is coming from the exhaust, and it smokes when first started
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Posted on Jan 02, 2017
From Volvo Cars of North America letter I received: "[Volvo] has voluntarily decided to extend warranty coverage for the fuel pump on U.S. model year 2001-2002 Volvo S80, S60, V70, and XC70 vehicles."
The letter goes on to describe conditions that in the end, may result in a fuel odor. "Coverage is limited to the symptoms described in this letter for the fuel pump only."
Contact a Volvo dealer to have this corrected under warranty. If you already paid to have this fixed, then you can submit the repair order with a copy of the warranty letter (keeping both for your records) to Volvo on the address on the letter. If you did not get the letter, I'd suggest contacting Volvo.
Bottom line is that you should not have to pay to have this fixed.
Posted on Dec 30, 2008
Water in combustion chamber makes white smoke--suspect that the head gasket is leaking water into the chamber. If oil leaking around turbo, it may have a bad bearing and bad oil seal. Check waste gate valve and control.
Posted on Aug 01, 2009
810 neutral check, incorrect connection
1618 dtc is in another module
Volvo does not provide information regarding DTC P1633 for many of their models.
However, it has been reported that various Volvo engine control modules will produce this code. The code is associated with a missing or inaccurate vehicle speed signal from the ABS control module and may be accompanied by DTC P0722 or P1618.
- Defective vehicle speed signal to the ABS control module
- CAN connection problem
- Defective ABS control module
- Defective engine control module
Manufacture codes associated with this P code may include ECM-510f, 530d.
Posted on Mar 28, 2010
P0785 - Shift/Timing Solenoid Malfunction (3-2 shift solenoid is not working properly)
P1618 - Diagnostic Trouble Code (DTC) in another control module (in this case, in the Trans Module)
Flush the transmission, get any software upgrades available, reset the adaptors and try it, nothing to lose.
If it doesn't work you will need a transmission. Solenoids are internal, that's what controls the shifts.
They could be faulty or the valve body but one should always do what I said once, if it doesn't fix it, you're looking at a transmission.
The resetting of adaptors is crucial if you update the software. It's basically wiping the memory of the TCU (transmission controller) and teaching it how to shift properly again.
Also could check this TSB...
The reason why I ask, is because anytime there are MULTIPLE transmission solenoid codes, its usually the result of a failed ignition switch. However, since only two codes appeared and were one at a time, I think at this point, its unlikely the result of an ignition switch failure.
P0785 is for the 3-2 downshift solenoid. Either the solenoid is faulty, or something got damaged while the 1-2 solenoid was being replaced. (connector knocked loose, wire rubbing on pan or valvebody, etc...).
The 3-2 solenoid is #394 in the picture below, which is at the opposite end of the 1-2 solenoid.
P0785 is for the 3-2 solenoid and that is 394 in the picture. Is it likely to fix it? yes, but of course I cannot guarantee that it will, sitting behind my computer and never seeing the vehicle.
Hope this helps.
Posted on Jan 31, 2011
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