Hard to start and rough/low idle
#1
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Location: Austin, Texas
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Hard to start and rough/low idle
I've had this problem for about a month now. I got my car back on the road after about a month of being down for the vaccum line job and a light tune-up; silicon lines, viton check valves, new pvc valve, fuel filter, plugs and wires, pulsation dampner, new injectors, a new 700amp battery, and some tlc. Now it seems that she's been hard to start I turn the key and have to crank her over for a few seconds before she turns over and I get to watch a nice cloud of unburnt fuel fill my apt complex. I replaced the spark plugs this passed weekend and did the de-flood procedure and she started up on the first try with out a hitch. While running she's kinda rough and rocks the car a bit and idles about 1300rpm to about 1600rpm, the after warm up she'll idle around 200-500rpm. I replaced the long metal (aluminum?) check valve with a plastic one from pep boys. I heard some talk of the clutch switch going bad and causing a rough idle, but causing it to hard start is a little odd to me. Any ideas?
#3
Racecar - Formula 2000
This could be off base, but:
IIRC, the aluminum one is the PCV valve and has a bleed hole to allow some crankcase vapor to be sucked into the manifold. If you replaced that, there is no longer a bleed, and the idle would be lower and (maybe) richer.
You may need to replace the replacement with the proper unit.
Dave
IIRC, the aluminum one is the PCV valve and has a bleed hole to allow some crankcase vapor to be sucked into the manifold. If you replaced that, there is no longer a bleed, and the idle would be lower and (maybe) richer.
You may need to replace the replacement with the proper unit.
Dave
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