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Almost Positive its a miss now

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Old 09-13-2007, 06:58 PM
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FuzzyDiceRule
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Default Almost Positive its a miss now

When my car idles, its got a rough idle, and about 1-2 times a second i feel a "bump" is the best word to describe it, and whenever it "bumps" the idles go down a lil bit, so by now im almost positive its a fuel related miss, because it doesnt backfire.

im wondering, is it worth it to try and clean my injectors, or should i just buy a new set (19lbs is stock, right)

i threw some V-Power 91 octane, and a bottle of injector cleaner, and it didnt do squat, so either im wrong, and its a vacuum, or im right and the injector is too fugged to be fixed
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Old 09-13-2007, 07:01 PM
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mattdel
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Default RE: Almost Positive its a miss now

could be alot more than that.
bad plug wires, bad plug(s), TFI or PIP module, coil....
i wouldn't bet on a vacuum leak
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Old 09-13-2007, 07:03 PM
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nitrous_bob
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Default RE: Almost Positive its a miss now

yes it's a miss i'm sure, why don't you think electrical related though ?



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Old 09-13-2007, 07:25 PM
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AdderMk2
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Default RE: Almost Positive its a miss now

I'd laugh if he had a block to chassis ground problem
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Old 09-13-2007, 07:26 PM
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FuzzyDiceRule
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Default RE: Almost Positive its a miss now

why would that cause a miss, and where are those, its worth a check


about now, im just gonna spend mah 400 on a new ignition, cap, wires, plugs, and injectors

i think they ruined one of the wires when we got my engine steam cleaned, so...
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Old 09-13-2007, 07:30 PM
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AdderMk2
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Default RE: Almost Positive its a miss now

Thats the spirit.... If you don't know whats wrong... just throw some money at it..
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Old 09-13-2007, 07:41 PM
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ACE
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Default RE: Almost Positive its a miss now

Wait how long ago did you get the engine steamed cleaned? If it was fairly reciently and you noticed the miss AFTER the cleaning, try wiping out your cap and inside your dizzy and all the plug wires and clean the coil where the coil wire goes it. You might have condensation in one of those connections and giving you a bad spark! I have learned that with my bronco after I cleaned it.
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Old 09-13-2007, 09:25 PM
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FuzzyDiceRule
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Default RE: Almost Positive its a miss now

i used a timing light on all the plug wires, theyre all firing,

for the record, its this idle thing, it seems to run fine at higher RPM, but it has a lack of power

we got the engine cleaned a WHILE ago, so i dont remember

my best guess is a faulty spark plug or a semi clogged injector
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Old 09-13-2007, 09:29 PM
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AdderMk2
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Default RE: Almost Positive its a miss now

did you ever think of maybe putting a new set of plugs in it... autolite 25's...

with some silver antisieze compound

at $1.48 each, its not exactly breaking the bank
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Old 09-13-2007, 09:42 PM
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FuzzyDiceRule
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Default RE: Almost Positive its a miss now

yeah, dude, i said earlier im gonna buy a new cap, coil, wires, plugs and injectors, all but the wires are stock, but i dont like blue plug wires
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