Did the change of spark plugs cause hard starting?

1,555

Asked by Feb 19, 2012 at 07:57 AM about the 1996 Honda Civic DX

Question type: Maintenance & Repair

i recently changed my Denso performance plugs and put in new NGK V-Series plugs... i tried
starting the engine but it's not starting after a few clicks... it starts immediately when the engine
is still warm but hard in the morning...my old plugs do not have problems at all, they're just old
and worn out... idle is also lower than usual but a slight acceleration difference is felt...its the
starting that bothers me...could the change of plugs cause this?

8 Answers

1,215

What you describe sounds like a problem with compression on one of the cylinders. Could be possible that one of the sparks is not sitting correctly or the thread is weak, I doubt there would be a problem with the new sparks, but it could be possible too.

Best Answer
6,355

make sure all of the NGK's have seals on the plugs- have seen them without thus causing low compression.

1 out of 1 people think this is helpful.
1,095

could also gap your plugs properly should say the gap in your manual

1,555

did them all... i also checked if the plugs were tight... still no luck, gonna chck it again

1,095

Hmm not sure cause I've never heard of that

1,555

darnit my high tension wires were toast... i pulled the socket out using long nose pliers... glad i still have the stock plugs and replaced all of them... i think i figured it out... the wires werent able to withstand the current... what more could happen if i put back the stock one? its just temporary though...

4,135

the clicking sound i would have associated with a bad battery but since you found the wires that were "toast" that sound you heard was probably the spark plug wires shorting out.

1 out of 1 people think this is helpful.
4,135

i hope that fixes your problem!

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