- Sep 9, 2017
- 3
- 0
- 1
Ok, not really the last two.
Vehicle Information: 1993 5.0 litre in a 1990 Fox, A9L running GUFB strat on unknown def, aftermarket tb but not aftermarket MAF, knockoff cobra intake I think and possibly stock injectors.
Hope this isn't the wrong board, suck at forums. I'll move it if needed.
Here goes: Today has been possibly the worst day ever. I drive all day and it's great, as soon as I pull into the driveway the car coughs up blood and conks out. I've called four local mechanics and they all won't give me the full story (because they want me to come in and pay for it I'm sure) so heres what I got.. hoping you guys can help...
Issue: Car idles rough, sometimes dies, feels like a misfire, will rev high just fine, and drive, but just an overall shakiness that wasn't there before. Smoke and oil from exhaust.
Background: have been driving this car for 43 miles. Engine has 90k, tranny 265k. When I bought it it ran just fine on all 8 cylinders, shifted great, revved fine, that pinging issue I posted about[on another forum] turned out (probably) to be a shifter rattle since its metal on metal and if I put my hand lightly on the shifter it doesn't vibrate nearly as much. Local mechanic took it for a drive and agreed.
Changes since then: Disconnected an aftermarket AFR meter. Might have been wideband since it had like 20 markings, but no numbers, so who knows. It was disconnected from power, and ground. There was a third wire (purple) that was likely an input but was never hooked up in the first place. I also reconnected the previously blocked off EGR cooling doohicky. It's the two hoses in fig 1 (that's not my car though) that go in and out of the TB. Removed climate control wiring and put a screw into the suck-y part of the green connector behind the dial where you select where the air comes from. My car has no AC so I just got rid of it. I put in the screw because it's under vacuum and seemed to make a hissing sound without the blockage. Drove fine like that for a day.
Symptoms and Evidence: Assuming misfire because a) feels waaaay shakier and jerkier than it did and b) sounds like it in the exhaust. Possibly has something to do with that BAMA chip with unknown tunes because when I peg the throttle it seems to smooth out just a bit (open loop?), sticks at a higher idle when I let off, but then it will fall back down to the standard idle and sound like hot garbage again, as you can see in the revving video. The exhaust is separate, no H or X pipe stuff, one header/tube per tip or so it looks like, and both tips left and right let off a little smoke and a little oil under varying conditions. I say oil because it is brown, slimy, not sweet, smells like oil not gas, and stained my garage. However, the left pipe leaves more oil marks and the right pipe is more smoky, except under load (clutch engaged) when the left pipe is also plenty smoky. This smoke is white and faint, you'll have to look hard in the video. Holding a rag up to the exhaust shows little drops of oil being flung, and revving it seems to make it cough and spit oil everywhere. Dipstick measurement was taken after shutting off engine, it was removed, wiped, inserted, removed, and then I took the picture. When initially removed, it was a similar color, but had slightly more bubbling (the pic only shows one bubble). It is still the same color as it was when I bought it. Slight ticking noise under the hood seeming to come from the throttle body. I tried to pull codes but the OBD I scanner didn't work, and the manual code dump didn't work (CEL never flashed, maybe bulb is dead or the CEL light was painted over. Dash is glued closed). Spark plugs look fine on left bank cylinder 1, LB2/3/4 look fine but were a little wet with what honestly felt like oil, and wiping it on cloth it looked like oil. Haven't checked right bank, as it doesn't seem to smoke or spit oil as much. White smoke that has been mentioned a couple times is very faint but definitely there. I'd think if the smoke is burning oil it would get worse as the engine warms up, all this info is given on a cold engine, except when it died. Obviously it was hot when it died as I pulled in.
The pictures are as follows: the one with three cloths is [left cloth is scrubbed from the inside of the left pipe, right cloth is scrubbed from the inside of right pipe, center cloth was held up to left exhaust tip about an inch or two from the opening at idle.] the one with the two marks is obvious, the one of the engine bay is not my car but is what i was talking about earlier in my post. See the images here(Be sure to read image descriptions.):
View: https://imgur.com/a/CLtsF
Videos here:
View: https://vimeo.com/233151939
View: https://vimeo.com/233151925
I've provided as much evidence as I can, I will provide more if needed.
Vehicle Information: 1993 5.0 litre in a 1990 Fox, A9L running GUFB strat on unknown def, aftermarket tb but not aftermarket MAF, knockoff cobra intake I think and possibly stock injectors.
Hope this isn't the wrong board, suck at forums. I'll move it if needed.
Here goes: Today has been possibly the worst day ever. I drive all day and it's great, as soon as I pull into the driveway the car coughs up blood and conks out. I've called four local mechanics and they all won't give me the full story (because they want me to come in and pay for it I'm sure) so heres what I got.. hoping you guys can help...
Issue: Car idles rough, sometimes dies, feels like a misfire, will rev high just fine, and drive, but just an overall shakiness that wasn't there before. Smoke and oil from exhaust.
Background: have been driving this car for 43 miles. Engine has 90k, tranny 265k. When I bought it it ran just fine on all 8 cylinders, shifted great, revved fine, that pinging issue I posted about[on another forum] turned out (probably) to be a shifter rattle since its metal on metal and if I put my hand lightly on the shifter it doesn't vibrate nearly as much. Local mechanic took it for a drive and agreed.
Changes since then: Disconnected an aftermarket AFR meter. Might have been wideband since it had like 20 markings, but no numbers, so who knows. It was disconnected from power, and ground. There was a third wire (purple) that was likely an input but was never hooked up in the first place. I also reconnected the previously blocked off EGR cooling doohicky. It's the two hoses in fig 1 (that's not my car though) that go in and out of the TB. Removed climate control wiring and put a screw into the suck-y part of the green connector behind the dial where you select where the air comes from. My car has no AC so I just got rid of it. I put in the screw because it's under vacuum and seemed to make a hissing sound without the blockage. Drove fine like that for a day.
Symptoms and Evidence: Assuming misfire because a) feels waaaay shakier and jerkier than it did and b) sounds like it in the exhaust. Possibly has something to do with that BAMA chip with unknown tunes because when I peg the throttle it seems to smooth out just a bit (open loop?), sticks at a higher idle when I let off, but then it will fall back down to the standard idle and sound like hot garbage again, as you can see in the revving video. The exhaust is separate, no H or X pipe stuff, one header/tube per tip or so it looks like, and both tips left and right let off a little smoke and a little oil under varying conditions. I say oil because it is brown, slimy, not sweet, smells like oil not gas, and stained my garage. However, the left pipe leaves more oil marks and the right pipe is more smoky, except under load (clutch engaged) when the left pipe is also plenty smoky. This smoke is white and faint, you'll have to look hard in the video. Holding a rag up to the exhaust shows little drops of oil being flung, and revving it seems to make it cough and spit oil everywhere. Dipstick measurement was taken after shutting off engine, it was removed, wiped, inserted, removed, and then I took the picture. When initially removed, it was a similar color, but had slightly more bubbling (the pic only shows one bubble). It is still the same color as it was when I bought it. Slight ticking noise under the hood seeming to come from the throttle body. I tried to pull codes but the OBD I scanner didn't work, and the manual code dump didn't work (CEL never flashed, maybe bulb is dead or the CEL light was painted over. Dash is glued closed). Spark plugs look fine on left bank cylinder 1, LB2/3/4 look fine but were a little wet with what honestly felt like oil, and wiping it on cloth it looked like oil. Haven't checked right bank, as it doesn't seem to smoke or spit oil as much. White smoke that has been mentioned a couple times is very faint but definitely there. I'd think if the smoke is burning oil it would get worse as the engine warms up, all this info is given on a cold engine, except when it died. Obviously it was hot when it died as I pulled in.
The pictures are as follows: the one with three cloths is [left cloth is scrubbed from the inside of the left pipe, right cloth is scrubbed from the inside of right pipe, center cloth was held up to left exhaust tip about an inch or two from the opening at idle.] the one with the two marks is obvious, the one of the engine bay is not my car but is what i was talking about earlier in my post. See the images here(Be sure to read image descriptions.):
View: https://imgur.com/a/CLtsF
Videos here:
View: https://vimeo.com/233151939
View: https://vimeo.com/233151925
I've provided as much evidence as I can, I will provide more if needed.