Hi All,
This is my first question as a new member. My first time, so please be gentle My brother just picked up an 88 ASC Mclaren to leave here in Las Vegas as his "winter driver" when he visits from the NorthEast rust belt. It's 5.0 HO/automatic with stock exhaust and cats. The car seems to run pretty well, always starts, plenty of oomph, but can't get more than 11 mpg!?! We are suspicious that we may have plugged (or partially pugged up) cat(s). We are new to these cars and are looking for a place to start. Also, when you slow down and stop at a light, especially after being on the highway, the idle surges up and down and sometimes almost stalls when you first stop, then it recovers and seems almost normal. We just want to know where to start and the best procedure to avoid chasing our tails. There will be many more questions to follow.
Thanks
Gene
This is my first question as a new member. My first time, so please be gentle My brother just picked up an 88 ASC Mclaren to leave here in Las Vegas as his "winter driver" when he visits from the NorthEast rust belt. It's 5.0 HO/automatic with stock exhaust and cats. The car seems to run pretty well, always starts, plenty of oomph, but can't get more than 11 mpg!?! We are suspicious that we may have plugged (or partially pugged up) cat(s). We are new to these cars and are looking for a place to start. Also, when you slow down and stop at a light, especially after being on the highway, the idle surges up and down and sometimes almost stalls when you first stop, then it recovers and seems almost normal. We just want to know where to start and the best procedure to avoid chasing our tails. There will be many more questions to follow.
Thanks
Gene