my 97 q45 is shanking a lil when I take off

[grip1968]

I was driving home this morning and i notice my car was shanking a lil and the RPM' was going up and down a lil. I thought it was my transmission, so I check the fluid thats good. can it be anything else ? this is the first time I evevr had this problem.

[maxnix]

I ever had this problem.

While I certainly don't know if you have experienced this problem previoiusly (who else would?), others have. About 3 previoius threads including words like Fix This Stumble.

[grip1968]

I never had a tune up, i no my air filter is drity, i need to change it, but I notice I put Chevron 87 gas in my car and thats when Im having this issue.

[qship96]

Q45 REQUIRES premium fuel.....EVERY SINGLE FILLUP

[maxnix]

Oh, Jeez!

RTFOM! RTFSM!

No one can save one of these cars from intentional owner abuse.

[qship96]

Premium fuel is priced between $2.07-2.20 in Maryland today, regular at 1.91-1.99...............about 20 cents per gallon difference to your wallet, but worlds apart for your engine!

[grip1968]

Do you think the bad gas cause this problem

[menacekustoms]

I am having the same problem, and I ran a code scanner on mine. Both knock sensors are gone. So, when my new ones arrive, I will be doing a thorough write up and inspection while stuff is apart.

[maxnix]

Do you think the bad gas cause this problem

It starts with a bad owner employing the wrong grade of fuel, no matter if that grade is good or contaminated fuel.

[sldwys]

it will also pay to check your driveshaft hanger bearing.

[maxnix]

it will also pay to check your driveshaft hanger bearing.

Hasn't proven to be a problem yet on FGY33, but doesn't mean it won't develop into one.

[grip1968]

here are the codes I got from my mechanic today, P0308 & P0325, He said it will cost 1200 to fix, is that the right cost for this work

[maxnix]

here are the codes I got from my mechanic today, P0308 & P0325, He said it will cost 1200 to fix, is that the right cost for this work

What work?

There is no "right cost", only what he bids to repair and what you are willing to pay.

I personally would not agree to any repair in that amount that I did not understand from a cause and cure perspective unless it was explained in detail by a senior Infiniti technician. Any "mechanic" not familiar with the VH41DE is probably just guessing.

I would address the #8 misfire first.

[qship96]

p0325 is typical nissan knock sensor failure{not causing your current problem,but fix anyway to maximise power and mpg}

p0308 is cylinder number 8 misfire.....could be worn out sparkplug,but most likely failed coilpack on this model- replace all 8 plugs while in there to swap coilpack

[JOHNQ]

change #8 coil to a good used or brand new coil, and change spark plug while your there .$150 max if you do yourself, if not add $50 max for labor#8 cyl is on pass side closest to back firewall change both knock sensors and rest of spark plugs when its time to do valve cover gaskets or within 6mo. whichever comes firstimmediately change air filter and fill with supreme gas and 1 bottle of isoheet

[grip1968]

how much do the coil pack run, also what are the best plugs to put in the car, my mechanic said BOSCH

[maxnix]

.....my mechanic said BOSCH

This is where you dump your know nothing about Infiniti Q45 mechanic now!

Bosch plugs are known to have destroyed VH engines.

Use only the OEM specified NGK PFRG plugs!

You really need to to retrieve your car from this clown, sit down and read the OM and FSM, then read Q45tech's posts so you can get a clue about how to evaluate to which technician to trust your car. Honestly.

[JOHNQ]

get the 8 oem ngk spark plugs, 1 oem coil for #8 cyl., oem air filter and might as well get the vc gaskets and other gasket associated with vc right now from Joe of IOS, he is having a 35% off sale . hurry while your at it might as well get the fuel filter since they are cheap to replace

[NightRiderQ45]

my mechanic said BOSCH

Your mechanic is an idiot...no credibility from this point forward

[powrserj]

Yea go NGK I had the same issue was a misfire changed the Coilpack and put New plugs and now drives just fine. Had my Fuel Pump, MAF and all that other crap changed only to be a simple Plug and Pack. Keep up on the issues or its gonna catch up

[maxnix]

Keep up on the issues or its gonna catch up

And that's the difference between deferred maintenance and preventative maintenance.

[grip1968]

DITTO