Hi everybody.
A friend just bought an '89 xr7 and due to some medical problems in his family doesn't have the time to work on it. I've decided to try to get it sorted out for him as a Christmas gift, but it seems that I've got my work cut out for me.
When I first started on the car, it had been sitting for quite some time and wouldn't run. So far, I've changed the plugs (they were all fuel fouled), drained the old (extremely stale) gas, replaced the fuel filter, put in a few gallons of premium, and changed the oil. It runs now, but very rough, and won't idle. It sounds like it's got a dead cylinder or 2, but if you hold it steady at about 2500 rpm, it will hit on the dead cylinder(s) occasionally. Any suggestions on what to check?
Also, there is a smaller hose coming off of the intake hose between the MAF and throttlebody which isn't connected to anything. I know that having any kind of vaccum leak downstream of the MAF isn't good, but I've been all over the top of the engine and can't find where it connects. If anybody could post a picture or a detailed description of where to connect the other end of this hose, I'd really appreciate it.
Thanks in advance,
Tony
A friend just bought an '89 xr7 and due to some medical problems in his family doesn't have the time to work on it. I've decided to try to get it sorted out for him as a Christmas gift, but it seems that I've got my work cut out for me.
When I first started on the car, it had been sitting for quite some time and wouldn't run. So far, I've changed the plugs (they were all fuel fouled), drained the old (extremely stale) gas, replaced the fuel filter, put in a few gallons of premium, and changed the oil. It runs now, but very rough, and won't idle. It sounds like it's got a dead cylinder or 2, but if you hold it steady at about 2500 rpm, it will hit on the dead cylinder(s) occasionally. Any suggestions on what to check?
Also, there is a smaller hose coming off of the intake hose between the MAF and throttlebody which isn't connected to anything. I know that having any kind of vaccum leak downstream of the MAF isn't good, but I've been all over the top of the engine and can't find where it connects. If anybody could post a picture or a detailed description of where to connect the other end of this hose, I'd really appreciate it.
Thanks in advance,
Tony