I purchased a 2001 Volvo V70 T5 2.3ltr for cash in November 2018 because I need a car and cannot afford the exorbitant car loan rates or 20% plus annual percentage rates.
The car had been looked after and the engine had been replaced less than 30k miles ago. The car was not running so I knew it was a bit of a gamble and I was aware that I would end up with either a cheap car or an expensive ornament!
The previous owner of this 2001 V70 T5 said "This car became hard to start at times and began cutting out intermittently and now won't start at all.
The engine was replaced 3 years ago and has only done about 25k miles since the replacement.
Sometimes when I try to start the car, it seems to misfire and other times it runs smoothly for a few seconds and then cuts out.
I do notice that when it starts, just before it cuts off, the dashboard lights get slightly brighter which I think means that there is a bad electrical connector or relay.
I put an ODBII on the car, but it does not show any problems.
So far I have tried:
1. Draining some of the gasoline out of the tank and putting some new gasoline in, so what is in the tank is a mix of old and new.
2. New fuel pump.
3. I measured the fuel pressure at the cylinder head and it is good.
4. I changed the spark plugs and ignition coils.
5. I replaced the Crank Shaft Position Sensor.
6. I checked the fuel pressure at the cylinder head and it reads a steady 50+ psi.
7. The battery voltage holds well at 12.5 volts until I have had several goes at starting it.
I made a video of the dash showing the dash gages, a fuel pressure gage and a volt meter. The video is at:
I have run out of ideas?