5.0 no start this morning... Please Help

Topic: 5.0 no start this morning... Please Help (Read 1121 times) previous topic - next topic

5.0 no start this morning... Please Help

May 17, 2010, 07:17:36 AM

Well, i started driving my 88 XR7 after i got the heater core done and recharged the AC and everything was fine. Ive been driving it for about 2 weeks. This morning i went out to start it up and it just cranks and cranks. I noticed i didnt hear the fuel pump prime. I popped the hood to check the coil. Well when i went to remove the cover that covers the coil and starter solenoid i got a puff of smoke and then that was it. It definetly smelt electrical. It still cranks and everything so im not sure what that was all about. I am at work right now and just trying to put a feeler out to see if anyone has any idea what could be causing the no start. I would like to get the parts so i can fix it tonight when i get home. thanks in advance for your help.

5.0 no start this morning... Please Help

Reply #1 – May 17, 2010, 07:55:36 AM

When mine did that it was the fuel pump. There are several steps to verify it isnt something else.

There is a spot to jumper and make the fuel pump run, (if its able to) it is on the computer test plug under the hood. I dont have a link to show it, it on the board here somewhere.

5.0 no start this morning... Please Help

Reply #2 – May 17, 2010, 08:02:00 AM

im gonna have to try and find that.

5.0 no start this morning... Please Help

Reply #3 – May 17, 2010, 08:35:13 AM

The fuel pump test pin is the pin on the bottom right if you hold the test connector with the 2 pins on top and the 4 on bottom. Ground that pin and the fuel pump should run continuously if it still works.

5.0 no start this morning... Please Help

Reply #4 – May 17, 2010, 08:56:32 AM

ok great, thank you very much. I have been doing alot of reading and it seems the small ground wire by the battery cable could be causing an issue. Like i said i had a small puff of smoke come out of the area where the coil is so i hope its just a bad connection. I have a full tank of gas and pray that the fuel pump is good.

5.0 no start this morning... Please Help

Reply #5 – May 17, 2010, 07:42:17 PM

ok, so i got home tonight. got in it to let it roll into the garage so i could start wworking on it well i tried starting it and it fired right up????? what the hell??? I disconnected all the connectors by the coil and sprayed them with electrrcal cleaner and reinstalled. i also cleaned the small ground wire. It still started and seems to run fine, just like beforee. This was really weird!

5.0 no start this morning... Please Help

Reply #6 – May 17, 2010, 07:58:19 PM

I was gonna say a fusable link. If I recall, those are under that cover, and will smoke when they blow. However, they don't grow back together, hehe... So that's not it...

5.0 no start this morning... Please Help

Reply #7 – May 17, 2010, 08:40:18 PM

Sounds like a clogged fuel filter or a fuel pump going tits up. Electrical gremlins usually dont go away. Do a fuel pressure test when its running with a gauge off of the schrader valve.

5.0 no start this morning... Please Help

Reply #8 – May 18, 2010, 07:14:37 AM

ok, will do. thanks I drove it this morning and no problems... as far as the fuel filter its new.

5.0 no start this morning... Please Help

Reply #9 – May 18, 2010, 01:29:34 PM

Can you run codes? the PIP and TFI will do weird stuff when they start to die....

5.0 no start this morning... Please Help

Reply #10 – May 18, 2010, 02:50:45 PM

Quote from: CoogarXR;322261

I was gonna say a fusable link. If I recall, those are under that cover, and will smoke when they blow. However, they don't grow back together, hehe... So that's not it...

Sometimes the outer sheathing WILL stay and look OK upon first glance though....

5.0 no start this morning... Please Help

Reply #11 – May 18, 2010, 07:36:53 PM

Quote from: thunderjet302;322347

Can you run codes? the PIP and TFI will do weird stuff when they start to die....

i dont have a check engine light on but i do plan on running codes.