I havent seen it mentioned on any forum but did you know the 1984 turbo buicks had 2 fuel filters?One on the front of the engine and one located near the rear drivers side tire?
Also all of the single pole sensors (coolant level , o2, knock sensor ) should never have any kind of sealent used on them , the threads on these sensors are used to ground the sensors (without this the cars computer is fed junk)
On the 1984 t-type im working on the coolant temperature sensor was incorrect for this car (previous owner changed it to the porcelin one out of a 4.1 litre for some reason , im surprised the car ever ran at all .
The flowmaster muffler was experiencing intermittant blockage and has been replaced with a flow through design
little things included a gummed up egr valve , a port on the vaccum block leaking and many other details overlooked . If your blms are higher than normal change out both fuel filters before going any further as i believe this is majorly overlooked on these cars .
Just cleaning the teflon tape off of the cars single poled sensors shut off about 4 codes the cpu was reading .
If your cars engine seems abnormally hot (burn yourself on master cylinder ) and you are constantly setting an egr code ,more than likely there is a restriction in your exhaust . the car came with a flowmaster on it , when purchased ,possibly the worst choice for a turbo engine .
Also all of the single pole sensors (coolant level , o2, knock sensor ) should never have any kind of sealent used on them , the threads on these sensors are used to ground the sensors (without this the cars computer is fed junk)
On the 1984 t-type im working on the coolant temperature sensor was incorrect for this car (previous owner changed it to the porcelin one out of a 4.1 litre for some reason , im surprised the car ever ran at all .
The flowmaster muffler was experiencing intermittant blockage and has been replaced with a flow through design
little things included a gummed up egr valve , a port on the vaccum block leaking and many other details overlooked . If your blms are higher than normal change out both fuel filters before going any further as i believe this is majorly overlooked on these cars .
Just cleaning the teflon tape off of the cars single poled sensors shut off about 4 codes the cpu was reading .
If your cars engine seems abnormally hot (burn yourself on master cylinder ) and you are constantly setting an egr code ,more than likely there is a restriction in your exhaust . the car came with a flowmaster on it , when purchased ,possibly the worst choice for a turbo engine .
