Car Won't Start

[renegade8999]

I just purchased a 89' 240 and the kid that owned it previously had done some "cute" wiring for his stereo. The ground had come undone on the sub though and i had a friend over that loves working on and tuning stereos so i told him have at it. He regrounded the sub and got whole system working great and i was completely happy... till i tried to start the car. the car cranks but will not start up at all. i have checked all the fuses and took the opportunity to replace all the spark plugs and wires but i still cannot get the damned thing to start... tried jumping it just for extra power but it cranks and cranks and nothing. Please any ideas are appreciated

also i tried unplugging the entire stereo after, ground and all. No change.

[surreybc]

did you check fusible links in relay box by battery? you really have to scrutinize them sometimes becuas is hard to see blown fuse sometimes.

[renegade8999]

From what i could tell all of those fuses looked fine...
Holy pain to pull the damned things out though...

stereo, lights, seat belts everything electrical in the car that i can tell works just fine i just can't get the damned thing to start. neighbor was sure i was being stupid and that it wasn't cranking only clicking but it is full on cranking just no start...
He said possibility that i ungrounded fuel pump some how when i grounded the sub? Don't see how that could have happened

[surreybc]

From what i could tell all of those fuses looked fine...
Holy pain to pull the damned things out though...

stereo, lights, seat belts everything electrical in the car that i can tell works just fine i just can't get the damned thing to start. neighbor was sure i was being stupid and that it wasn't cranking only clicking but it is full on cranking just no start...
He said possibility that i ungrounded fuel pump some how when i grounded the sub? Don't see how that could have happened

you will hear the fuel pump in the trunk growling for a few seconds when you turn key to on.

[renegade8999]

is it really loud enough for me to be able to hear?
not sure i can hear it nothing makes much noise other than the engine cranking

[S-Nation S13]

lol youll hear the prime if you have a garage close the door turn you hey to position 3 with out starting it you hear a lil buzz noise in your trunk ..lol that the fuel pump priming if not replace it

[sil80 monster]

is it really loud enough for me to be able to hear?
not sure i can hear it nothing makes much noise other than the engine cranking


sounds like a fuel problem or a bad ground somewhere. just turn the key to the "ON" position, go back to the trunk area and listen for a buzzing/humming noise....(without cranking the motor)....if you dont hear anything....change the fuel pump :)

[renegade8999]

okay will definitely attempt that tomorrow at some point and see how it goes...
will update on how things go soon as i check

i'm hoping for a ground problem over replacing it. Is there an easy way of checking for ground problems on fuel pump instead of assuming the worst and replacing?

[surreybc]

get a multimeter. digital. cheap. check your fusible links with it also.

[renegade8999]

So the final verdict
had a neighbor of mine help me at first
Fuel pump...? Works just fine independantly but not with vehicle...
Neither of us had the foggiest clue as to why.
$240 later at the repair shop...
Previous owner had done some electrical work and grounded to the harness and in some fluke while i was doing stereo grounding we blew the main electrical fuse and scorched some wiring under fusilage box... FML lol