Still trying to find why power loss on hills Vacuum solenoids

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PaulD
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Still trying to find why power loss on hills Vacuum solenoids

Post by PaulD » Sat Jul 04, 2020 10:19 pm

Hi All , I’m still trying to find why I have power loss on hills , I have been looking at the vacuum valves under the drivers seat , 1996 2,5 diesel , specifically the two together that are connected to the fuel pump , I’ve tested both solenoids and one works and one doesn’t when 12v are supplied , I’ve also tested the wiring to the solenoids one(white plug) has power when cold then nothing when engine is warm , the other (Black plug)doesn’t seem to have power at all, cold or warm engine , I’ve ordered a replacement solenoid but I still need to work out why I’m not getting any power to one of them , could this be the cause of my poor performance?
I also suspect the fuel injection pump , only because I’ve had to replace a few seals (external ones with pump in situ) and I’m wondering if the internal seals need replacing too ?
any guidance would be much appreciated, thanks
Paul
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Northern Bongolow
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Re: Still trying to find why power loss on hills Vacuum solenoids

Post by Northern Bongolow » Sun Jul 05, 2020 10:46 am

The black one only gets power when it's really cold, when the coolant is under about 10 Deg c if I remember right, then it turns off and the white one comes on.
PaulD
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Re: Still trying to find why power loss on hills Vacuum solenoids

Post by PaulD » Sun Jul 05, 2020 2:41 pm

Thanks, Am I barking up the wrong tree suspecting the solenoids to be the cause of my poor performance up hills
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Northern Bongolow
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Re: Still trying to find why power loss on hills Vacuum solenoids

Post by Northern Bongolow » Sun Jul 05, 2020 5:59 pm

Those 2 just control the Aircon rev pic up and the cold start, both pick up the revs slightly when cold or a small load is put on the engine.
PaulD
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Re: Still trying to find why power loss on hills Vacuum solenoids

Post by PaulD » Mon Jul 06, 2020 12:17 am

Oh I see , thanks for that
Steveo45
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Re: Still trying to find why power loss on hills Vacuum solenoids

Post by Steveo45 » Fri Jul 24, 2020 2:35 pm

Hi could anyone tell me what selenoid that is next to the turbo selonoid please. its connected to the acuator and turbo selonoid by a vacum pipe. its on.passenger side. t
hanks steve
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Northern Bongolow
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Re: Still trying to find why power loss on hills Vacuum solenoids

Post by Northern Bongolow » Sat Jul 25, 2020 1:21 pm

Is it the one on the top of the nearside chassis leg, ?