Starting issue XC70 2.4t 2001

b4nditas · Post by **b4nditas** » 29 Nov 2015, 08:02

I have just bought Volvo XC70 2.4t 2001 . At first engine started easily and worked well, no errors and so one. On my way home engine error appears so I stopped the car to check it. When I tried to start the engine again it was starting exactly as it is shown in the video . And now sometimes engine starts quickly with no struggle, but some times it takes a wail to start it.

do you have any ideas what can it be?

b4nditas · Post by **b4nditas** » 30 Nov 2015, 12:49

Today I had done diagnostic and it said that there is oxygen sensor error. The mechanic delited error and i have driven around 200 km and error did not show again. But still it does not start easy.

Post by **xHeart** » 30 Nov 2015, 13:10

What was the error code?
There can be any number of things. I had similar issue, very unpredictable -- could be MAF sensor failing. It measures incoming fresh air.

Like this part https://www.ipdusa.com/products/6581/11 ... low-sensor

Oxygen sensor would not cause engine to not start, unless.

b4nditas · Post by **b4nditas** » 01 Dec 2015, 11:28

When I pull the switch away I get motor error and it starts even harder and rpm jumping.

Post by **vtl** » 01 Dec 2015, 12:08

RPM jumping is an indication of failing CPS or starter itself, if I remember correctly.

b4nditas · Post by **b4nditas** » 01 Dec 2015, 13:26

One more thing when I car stays still temperature is gut right at middle, but when I start driving in 5-10 min it drops two sections down.

Post by **vtl** » 01 Dec 2015, 14:41

Replace thermostat.

zanzabar · Post by **zanzabar** » 01 Dec 2015, 16:31

I agree with VTL, temp issue is stuck open thermostat...weird starting behavior sounds like failing crank or cam position sensor.

sergio · Post by **sergio** » 02 Dec 2015, 06:57

.

Hi b4anditas, don't repeat my mistakes, DON'T EVER ever ever START by replacing parts before you're 200% certain your diagnostics are correct.
Crank-crack-no-start can not be caused by a sensor (MAF, MAP etc) that if removed would not affect the engine from starting.
It could be fuel related (pump. filter and wiring)
Few winters back I had the same problem. The wires from fuel sensor were burnt. I replaced the fuel level sensor, since it was NOT reparable. And that was AFTER unnecessary replacement of crank sensor fuel filter and few more stuff.
In my S60 2002, its under the rear seat. Your must be accessible from the trunk. Check it.
These cars have a lot of wires [sometimes I think not less than a commercial airlines

]
If you think some parts must be replaced; try trying them out in a junk yard before buying one.
The correct diagnostic will save $$$$$.
Good luck and keep us posted how you resolve the problem.

.

b4nditas · Post by **b4nditas** » 02 Dec 2015, 15:32

Today I checked spark switches some of them were white and some black. Tomorrow I will buy new ones and see how engine is reacting.