rukkus
New member
- Joined
- Jan 26, 2016
- Location
- ON, Canada
Hey peeps,
so I'm a relatively new owner of my 89' 740 sedan. A little background to the car, it's got a +t swap done to it by the previous owner. It runs lh2.4, and pretty much uses all factory bits and pieces. Right now theres an old leaky t3 garrett Turbo off of an 242gt I believe and uses slimmer red top injectors(#0280155759).
I've been driving it around for the first month or so with no problems regarding starting it up, only that it runs a little rich. I've been having problems with the turbo leaking abit of oil so one weekend I took it off to inspect/clean it, that night I also changed out my coolant temp sensor and swapped the fuel pump relay as a precautionary measure. Once everything was back together I go to start it and nothing. I was able to start it up with some starting fluid and 30 minutes worth of attempts. Once it starts it'll bog down and die if I add any throttle but when leaving it idle until operating temp, I can drive it around no problem.
I then went ahead to change out the main fuel pump and filter, and also the in tank pump/sender assembly since mine was all rusty/leaky.
Still no luck.
When I turn the key to the final position before cranking I do hear the pumps priming. But they don't prime every time, let's say I try to prime them every 3 seconds, 2/5 times it wont, so I'm not sure if it's reached its desired pressure or regardless it should always prime even with the short intervals.
I've also changed the radio suppression relay to rule that out, and checked whether there was a leaky fuel pressure regulator.
I still have some diagnosing to do but have had limited time lately, figured I'd post up and see if anyone's had a similar experience. (I've done some browsing through forums too).
Anyway, if you've read all of this thanks, hope to get this car back on the road asap. I'm probably forgetting some details so I'll do my best to answer any questions.
so I'm a relatively new owner of my 89' 740 sedan. A little background to the car, it's got a +t swap done to it by the previous owner. It runs lh2.4, and pretty much uses all factory bits and pieces. Right now theres an old leaky t3 garrett Turbo off of an 242gt I believe and uses slimmer red top injectors(#0280155759).
I've been driving it around for the first month or so with no problems regarding starting it up, only that it runs a little rich. I've been having problems with the turbo leaking abit of oil so one weekend I took it off to inspect/clean it, that night I also changed out my coolant temp sensor and swapped the fuel pump relay as a precautionary measure. Once everything was back together I go to start it and nothing. I was able to start it up with some starting fluid and 30 minutes worth of attempts. Once it starts it'll bog down and die if I add any throttle but when leaving it idle until operating temp, I can drive it around no problem.
I then went ahead to change out the main fuel pump and filter, and also the in tank pump/sender assembly since mine was all rusty/leaky.
Still no luck.
When I turn the key to the final position before cranking I do hear the pumps priming. But they don't prime every time, let's say I try to prime them every 3 seconds, 2/5 times it wont, so I'm not sure if it's reached its desired pressure or regardless it should always prime even with the short intervals.
I've also changed the radio suppression relay to rule that out, and checked whether there was a leaky fuel pressure regulator.
I still have some diagnosing to do but have had limited time lately, figured I'd post up and see if anyone's had a similar experience. (I've done some browsing through forums too).
Anyway, if you've read all of this thanks, hope to get this car back on the road asap. I'm probably forgetting some details so I'll do my best to answer any questions.