c 70

Asked by Feb 02, 2013 at 01:39 PM about the 2004 Volvo C70 HPT Turbo Convertible

Question type: General

randemly will not start crank senser went out been replaced new spark plugs 1 week later randemly will not start
65000 miles on it start at 50000 miles

2 Answers


you did nothing for the problem so far,i think a relay would be underhood for start somewhere, just guessing location ck. fuse manual page in book or print under plastic relay cover,sometime a relay slams closed but dose not connect the power flow as should do


Was ANYTHING electrical on the car changed shortly before the problem started? The Bosch electrical system is multiplexed. The entire thing works based on feed back frequencies. If a part was replaced with something other than the original Volvo part, then that is likely the reason for the problem. There are subtle differences between the different Bosch parts, too, depending on the brand of the car. The other thing it may be is the throttle position sensor, even if it tests out within spec. Again, to do with the feedback frequencies. Bosch has added so much complexity that they are almost the modern version of Lucas Electrics, and we ALL know what they were called!

Your Answer

Volvo C70 Experts

  • #1
  • #1
  • #3
View All

Related Models For Sale

Used Volvo S60
126 Great Deals out of 8,364 listings starting at $1,995
Used BMW 3 Series
901 Great Deals out of 32,980 listings starting at $1,300
Used Volvo S40
11 Great Deals out of 783 listings starting at $1,900
Used Volvo S80
28 Great Deals out of 761 listings starting at $1,995
Used Volvo XC70
37 Great Deals out of 854 listings starting at $1,999
Used Volvo XC90
107 Great Deals out of 10,397 listings starting at $2,299
Used Ford Mustang
287 Great Deals out of 38,472 listings starting at $1,995
Used Volvo V70
4 Great Deals out of 318 listings starting at $3,181
Used Audi A4
188 Great Deals out of 12,349 listings starting at $1,700
Used Mercedes-Benz SLK-Class
40 Great Deals out of 1,277 listings starting at $1,492
Used Saab 9-3
15 Great Deals out of 835 listings starting at $1,999
Used Mercedes-Benz CLK-Class
26 Great Deals out of 1,106 listings starting at $2,600

Used Cars For Sale

2013 Volvo C70 For Sale
60 listings starting at $14,595
2012 Volvo C70 For Sale
43 listings starting at $9,995
2011 Volvo C70 For Sale
49 listings starting at $7,995
2010 Volvo C70 For Sale
15 listings starting at $7,995
2009 Volvo C70 For Sale
4 Great Deals out of 32 listings starting at $5,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.