Top 20 2005 Volvo XC70 Questions & Answers

Try simple fix 1st. Remove gas cap and clean it and gas orifice, then reinstall. Then go to auto parts store, borrow meter(free) and read codes.

Hi, could do with a little more info to be sure but it sounds like low battery voltage. That would cause the starter motor to click when trying to crank and low battery voltage could trigger other faults including brake and ABS warnings. Do your dash lights dim when trying to start the vehicle? That would be another symptom of low battery voltage.

First, you didn't seal it. It got hot... How hot is the problem. Blown head gaskets would be the least of the problem. Trashed engine would be worse case. First is to have a cylinder compression test done. Check oil and make sure no coolant made it to the crank case.

if i remember correctly CEM contains information about immobiliser. You need to sync it with your keys at dealers.

In the fuse box under dash. Does the hazard work if so different problem.

where is this code from as not on the OBD II list ?

The best way is to have someone reset it with a code reader. You can also try disconnecting the battery for about 5 minutes. Disconnect the positive side.

Scanner, at the workshop. You can't.

Its obvious the code is P0042 this is the 02 sensor heater circuit,For a 2005 Volvo.the 02 is not getting warm enough to maintain the fuel control.A replacement of the 02 sensor is the solution

If your car does not have a dipstick then it has to be checked with a scan tool.

If you do not know where the temperature gauge is, how do you know it is not reading right?

you might have a wire disconnected or is loose also check your fuses you might have a blown fuse

try running a laser cleaner disc, try a different CD

Weak spark or worn out plugs will manifest themselves more under heavy throttle operation, but the first thing we think of whenever someone mentions hills is fuel delivery volume, and the first suspect with low fuel delivery volume is the fuel filter. I would replace that filter before looking any further,
If that does not correct the problem, some more in-depth diagnostics of the fuel pump and the rest of the fuel delivery system will be in order.

follow the cables back from the motors in the headlight and see if you can find the leveling sensor ,i would imagine that both headlights have a common feed to this motor so it must be under the bonnet somewhere and it may just need a oil up with a oil can to soak in so as to free it up

work on the assumption that a battery needs 15 mins of engine running to fully recharge after one start,so connecting a gell cell battery to the cigar lighter would work perfectly well,especially if the cell was down on charge.

under the hood in the smaller box

It is likly a dirty relay. This is located on the passenger side by the ratiator fan, with a black plastic cover over the box. Be sure to disconnect the negetive side of the battery before working on any thing electric. Clean the relay contact points using 200 grid sand paper (wet-dry black paper), You can use a spray electric contact cleaner as well, which you can get at most autoparts stores.

volvo say its for life but i would reccommend changing at 80k with the cambelt.cant do any harm.

There should be a cap or cover behind the lamp assembly under the hood. 1/4 turn counter clockwise (if it is a hard cap) should expose the bulb and retaining spring (clip). Squeeze the clip to release it from lamp assembly. unplug old bulb, plug in new and then do the opposite to replace it. Good luck, them clips is the devil.