s60 2006 t5 baffled

volvomadness · Post by **volvomadness** » Fri Aug 07, 2020 8:40 am

On initial start in the morning the car stumps and stalls. After a few starts it eventually idles normally with no problems. No CEL. I just put a fuel system cleaner in to see if this resolves issue. New Volvo plugs, breather box and air filter have already been done.

Any other thoughts.
Madness

Post by **SuperHerman** » Fri Aug 07, 2020 10:21 am

On start up, when it is lumpy - what does the exhaust look like?

2000c70hpt · Post by **2000c70hpt** » Fri Aug 07, 2020 10:43 am

Could be a bad MAF. My c70 did the same thing till I changed it

YouTube · Post by **oragex** » Fri Aug 07, 2020 3:22 pm

The kind of issue you would need to read the codes

Blacklab467 · Post by **Blacklab467** » Fri Aug 07, 2020 10:21 pm

Mine did that when the fuel pump was on it’s way out. No CEL.

jonesg · Post by **jonesg** » Sat Aug 08, 2020 3:06 am

I would suspect low fuel pressure after sitting overnite.
Try keying the ignition off/on a few times to prime the system before cranking the engine.

volvomadness · Post by **volvomadness** » Wed Aug 12, 2020 11:05 pm

Thanks all for your replies. Finally I got a CEL and the culprit was the exhaust vvt solenoid. Replaced which solved the constant stalling a power loss issue. Lucky I had spare parts lying around and didn't have to purchase one.

Still have a slight stall when cold on startup no cel. I feel it's the fuel pressure sensor which I will replace this weekend.

Thanks again Madness

Post by **darrylrobert** » Thu Aug 13, 2020 8:46 pm

your lucky, i drove my xc70 for 3 years with a bad VVT solenoid no CEL. Check your key antenna ring, the solder joints can crack causing the car to hesitate to start.Good luck