Customers started to complain, and they remain closed while investigations continue.
Tesco says that the incident is an “isolated issue” and that none of its other Teesside supermarkets are affected.
A small crack in an exterior pipe let water into the fuel tank which led to the problems.
A Tesco spokesperson said: “We have been investigating the isolated issue with fuel from one tank at our Billingham superstore petrol station and liaising with affected customers.
Read more: https://www.gazettelive.co.uk/news/teesside-news/cause-tesco-fuel-pump-closures-14495045