Volvo v70 I 1999 engine turns off when warm

Post by **misha** » 16 Feb 2025, 10:16

Walbro is ok...as long as it isn't a copy.

Is lambda light(check engine light) on?

Can you read the codes?

VolvoV70I · Post by **VolvoV70I** » 06 Apr 2025, 12:34

Hello everyone,

I took a look at the spark plugs today.

When removing them, I noticed that spark plugs 1, 3, and 5 were so loose from left to right that I could simply unscrew them with a socket without using the ratchet.

Furthermore, the spark plugs were damp and dirty. (See photos)

After I cleaned and reinstalled the spark plugs, the error disappeared. I let the vehicle run for a while and turned it on and off again. It now runs without any problems.

But what could be causing them to be damp and dirty?

The first photo is from left to right.