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Old 03-11-2013, 12:53 PM   #1
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Unhappy New 5.0 HELP!!!

Hey everyone I just joined and am new to the site so bare with me if I posted in the wrong area. I had a.90 gt hatch but it was an auto so I traded for this 87 notch with a freshly rebuilt motor with a t5.transmission. well the guy said it has gt40p heads, trick flow upper and lower intake, bbk shorty headers, mad cap and rotor, an edlebrock cam he said he didnt know the specs, he said it has roller rockers don't know size, valve springs I think, 24 lb injectors, stock maf sensor what also makes me wonder if its an 87 motor with a maf conversion or just a newer motor cause he said it came without motor or tranny. So here's the problem, it starts fine, idles about 2000 for 3 seconds.and idles down to about 100 and surges between 1000 and 1350 until it finds its warm idle at 1250, tried turning the idle down but it just stalls out. Cleaned iac and it helped just a tad but not much at all, he said he should have bought an adjustable fuel pressure regulator before and he was planning on a 76 mm maf but we traded first. From all the research I did I basically need to reset idle, new fuel regulator, or larger maf and that should fix the idle and surging right? It doesn't surge all the time like when driving when I get going and put it.into neutral or.press clutch, sometimes it idles.down.to 950 or so and back up and sometimes it just wants to stall out and its not safe just stalling.out in.traffic and , has a clutch/transmission issue. Sometimes it letteraly bangs out of first gear
Clutch in put it into first and start to take off and bang I'm back in neutral and look like a dumb a$$ who can't.drive stick. Sorry for all the typos I'm on phone and it sucks so please bare with me.
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87 Notch back 5.0 5 speed manual, gt40p heads, edlebrock cam trick flow upper and lower intake, bbk shortys, gear drive timing, msd cap and rotor, under drive pulleys, no AC or smog pump, 24 lb injectors, 70 mm throttle body, ford racing wires. Big rust bucket with a nice interior and a freshly rebuilt motor :)
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Old 03-11-2013, 04:07 PM   #2
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Check for vacume leaks, check your timing .
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Old 03-11-2013, 07:28 PM   #3
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I'm only 18 and this is my second car, I know a fair amount about these cara and cars in general but I'm no expert. I'm pretty sure the timing is spot on and it has gear drive so it won't just change and I don't know where to find any vacuum lines
I know there's some in the back near fire wall but I don't know where else.and how to check. There was a plug that wasn't.in on the bottom of my egr valve so I plugged it in but nothing changed and the plug on top facing the passenger.side fender.was just open so I plugged it up.
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87 Notch back 5.0 5 speed manual, gt40p heads, edlebrock cam trick flow upper and lower intake, bbk shortys, gear drive timing, msd cap and rotor, under drive pulleys, no AC or smog pump, 24 lb injectors, 70 mm throttle body, ford racing wires. Big rust bucket with a nice interior and a freshly rebuilt motor :)
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