V70 petrol: Fuel starvation only when hot.Advice needed - Page 4

CSCUK · Feb 20th, 2024, 14:11

The duct tape on intake hose is to seal a small split in it.
Does anyone think that the fault could possibly be just a dirty throttle?

CSCUK · Mar 3rd, 2024, 18:09

The fix for failing to start/rev once hot (1999 v70 2.5 petrol) was to remove the distributor and clean the distributor and rotor arm contacts with the blade of a screwdriver.

It now revs correctly when hot. Prior to cleaning contacts the motor died as soon as the accelerator was pressed then struggled to start again while still hot, and only when cool again started reliably.

Steve Sarre, Luxobarge, Bob Meadows, 4X4 diagnosed it right. Thanks guys.

Luxobarge · Mar 3rd, 2024, 23:05

Great stuff, well done. However, I'd strongly suggest replacing the dizzy cap and rotor for decent quality new items, as clearly they are both past their best. Ideally original Volvo items but these are quite expensive so if you don't want to go that route i'd recommend ones from PFV online, their stuff is usually OK.

Thanks for posting the result, it's always nice to know what fixed it in the end.

Feb 20th, 2024, 14:11	#31
CSCUK Junior Member Last Online: Mar 3rd, 2024 18:34 Join Date: Nov 2020 Location: Chester	Reply to advice The duct tape on intake hose is to seal a small split in it. Does anyone think that the fault could possibly be just a dirty throttle?

Mar 3rd, 2024, 18:09	#32
CSCUK Junior Member Last Online: Mar 3rd, 2024 18:34 Join Date: Nov 2020 Location: Chester	Fix For Fault Found (details) The fix for failing to start/rev once hot (1999 v70 2.5 petrol) was to remove the distributor and clean the distributor and rotor arm contacts with the blade of a screwdriver. It now revs correctly when hot. Prior to cleaning contacts the motor died as soon as the accelerator was pressed then struggled to start again while still hot, and only when cool again started reliably. Steve Sarre, Luxobarge, Bob Meadows, 4X4 diagnosed it right. Thanks guys.

Mar 3rd, 2024, 23:05	#33
Luxobarge Premier Member Last Online: Yesterday 09:37 Join Date: Jan 2011 Location: Horne (Nr. Horley)	Great stuff, well done. However, I'd strongly suggest replacing the dizzy cap and rotor for decent quality new items, as clearly they are both past their best. Ideally original Volvo items but these are quite expensive so if you don't want to go that route i'd recommend ones from PFV online, their stuff is usually OK. Thanks for posting the result, it's always nice to know what fixed it in the end. __________________ Some people are like Slinkies, they serve no useful purpose but they still bring a smile to your face when you push them downstairs.

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