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Starter Motor Life?

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erikv11
Posts: 11910
Joined: 25 Jul 2009, 14:03
Year and Model: 850, V70, S60R, XC70
Location: Iowa
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Post by erikv11 »

There is a check valve built into the fuel pump, that may be failing.

Test: using a fuel pressure gauge, check the pressure right after turning the car off and then at several intervals until the next morning. If pressure drops over time, then it is likely the check valve.

Solutions:
(1) replace the fuel pump
or
(2) install an in-line check valve. Many of these have been installed on early P2 cars but I've never done it, can't advise you more than that except to say install it close to the filter.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 201k
'07 XC70, black, 205k
'07 XC70, willow green, 223k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k
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