Hello,
I have been experiencing very rough accelerating (like it's running out of
gas?) for about a week now. The car has 148K miles and starts flawlessly
and even runs pretty good at highway speeds with the cruise control on (not
perfect though). But after about fifteen minutes the slightest acceleration
will cause it to "miss" (like a loose electrical connection) and it's
getting worse. The dealer said that one of the coil packs was mis-firing
and replaced it. This only made the condition worse(?!)
Now, the service manager says that "it could be that all of the coil packs
have gone bad" because each time they replace a known bad coil pack with a
good one another one is indicated as mis-firing by the ECM. Service manager
says that "sometimes when one coil pack goes bad a chain reaction causes all
of them to fail". $700.00 to repair. Youch!
Is there ay way to test each individual coil pack out of the car?
Any thoughts on this would be greatly appreciated.
Thanks for any help ahead of time.
Ted
antaltREMOVENOSPAM@bellsouth.net
CW - 18 Apr 2004 16:21 GMT
Make sure it's not something else like the fuel injectors. I'm not
buying the "chain reaction" theory, and in my experience, coil pack
failures do not just occur under certain driving circumstances (ie.
"slight acceleration" but constant over a period of time. Also, are
you getting a code for multiple misfires or just one bank. Try to
trouble shoot by switching adjacent coil packs/spark plugs and seeing
what bank the computer pops up with as misfiring. YOu can test coil
packs with a multimeter but in my experience, an intermittent problem
may test normal.
BTW, a set of coil packs can be had for well under $400 and they are
very easy to install.
CW
>Hello,
>I have been experiencing very rough accelerating (like it's running out of
[quoted text clipped - 14 lines]
>Ted
>antaltREMOVENOSPAM@bellsouth.net
cobus - 22 Apr 2004 18:27 GMT
Hi Ted
I have a similar problem with my 93 Max.
Just try the following,
Remove the distributorcap then the rotor,remove the part that holds the
rotor,now remove the coverplate undernith it. Take out the disc and clean
it.If this helps its proberly a worn out distributor shaft bush that courses
the disc to gets dirty.
Excuse my english,I am not english speaking
> Hello,
> I have been experiencing very rough accelerating (like it's running out of
[quoted text clipped - 14 lines]
> Ted
> antaltREMOVENOSPAM@bellsouth.net
Roger - 23 Apr 2004 20:51 GMT
95 Maximas don't have distributor caps or distributors
> Hi Ted
>
[quoted text clipped - 27 lines]
> > Ted
> > antaltREMOVENOSPAM@bellsouth.net