TB Cleaning

[slybydesignq45t]

As stated in my previous RPM Surge Thread, the mechanic ran several test over the course of time they've had it. They have driven the car and could not find out why it stalled on me. They will take the Throttle Body apart per my request do to the fact that after careful searching on here and process of elimination I feel this may be the factor. I should get the car back today. As stated I drove the car yesterday and no RPM spikes.

The question that I have is, if at this point they deem the car fine (for now) is there anything further I can do on my own? Please keep this factors in mind.

1) I don't have a consult2) I don't have a garage3) I have basic tools that I can borrow from work, but don't own4) I can't get totally under the car5) I can only do this on Sunday

I hope this helps for a response.

[maxnix]

As stated in my previous RPM Surge Thread,,,,

So why are you starting a new one?

Very easy to clean TB once it is removed. A good metric socket set will suffice, along with a calibrated torque wrench and a TB gasket.

[slybydesignq45t]

So why are you starting a new one?

Very easy to clean TB once it is removed. A good metric socket set will suffice, along with a calibrated torque wrench and a TB gasket.

Thanks Max, yeah they are cleaning the TB now, but with out it repeating the same problems they can't move further from that. The (y33 idle jerk thread) was so on point to my problem thus far and picked up a lot from reading it. I love the way one person said it only happens at the worst moments, like when your trying to impress some one or when you really need to get some where....LOL.

I found that on point because it happened on my way to the mechanic, while driving out of down town sd where several ladies decided to start laughing at me . But when it happened on the highway while I was driving gave me the biggest chill. I had a car loose all its power and completely shut off in the fast lane with all lanes full and a semi behind me. It was GOD that got me out of that. I really don't want to repeat that situation again.

[maxnix]

No you don't want that danger to be present again.

Get after it with someone who knows what's going on with a VH41DE and cure it.

If it is not the MAF connector or coilpack connectors, then start scanning and resetting the ECU when a code is revealed. That will give you a clue where to start switching coilpacks then monitoring codes again.

[slybydesignq45t]

I got the car back and she drives much better after the TB cleaning. My mechanic only charged me $20 for all that testing they did along with properly cleaning the TB.

My idle is normal

Shifting is smooth again between 3rd and 4th

Car runs about 20% better

I feel like this is not going to be the end of the symptoms. Heres why. My engine is much much louder then it was before taking it in. I would take a louder engine over a shut down any day.

My mechanic also told me that I should look into servicing the transmission and he said I should change the Idle Valve or Idle Sensor. He also said the TB was really dirty, but I feel better that, that is one less thing to worry about.He said he really didn't fix the problem because he couldn't repeat the problem. Has anybody here ever replaced the Idle Valve or Idle Sensor - I forget what he called it specifically?
Modified by slybydesignq45t at 9:39 AM 10/22/2008

[Q451990]

Louder is never good.... especially "much much" louder. It sounds like they left something off...

You need to get your Q to a qualified technician. To my knowledge there is no "idle sensor" per se... the ECU monitors it, but that's all. The idle valve is the AAC or IAC valve. They rarely fail, but could get clogged in theory?

Again... I think you need an experienced Infiniti (or minimally 300ZX) tech. Someone with a Consult, FSM and the knowledge and experience to understand what it's saying. Sadly this will be more than a $20 visit

Good luck!

Heath

[Q451990]

ARRGGH! I just noticed you're in San Diego.

http://www.jerrytucker.net/

http://www.jerrytucker.net/

http://www.jerrytucker.net/

http://www.jerrytucker.net/

http://www.jerrytucker.net/

http://www.jerrytucker.net/

[maxnix]

ARRGGH! I just noticed you're in San Diego.

http://www.jerrytucker.net/

http://www.jerrytucker.net/

http://www.jerrytucker.net/

http://www.jerrytucker.net/

http://www.jerrytucker.net/

http://www.jerrytucker.net/

Heath, we've had that dicussion. Something about being too far.

[slybydesignq45t]

Thanks Q451990 for the clarification on the part actual name. I know I pronouncing it wrong...

[slybydesignq45t]

Heath, we've had that dicussion. Something about being too far.

I know we did

He's not far from me at all, its just a matter of finances. Also I need to just get her smogged. Its funny because I have done very well with her so far in regards to not letting problems pro long, but it has eaten into a planned budget for repairs and other repairs where performed. I wish I had a grip of money to take her to Jerry. I will take her there to get the transmission flushed, I will also look into the AAC and poke around for loose hoses this Sunday. I will pull the ECU this Sunday as well. I have been extremely busy with other matters but haven't neglected my Q by any means. When I say louder I mean in terms of engine noise. I don't know if it has anything to do with it being colder in the mornings now. But yeah in any case louder to me is not good, compared to how much quieter it was b4 she stalled on me.

[Q451990]

They do tend to have more exhaust noise before being fully warmed up in colder ambient temperatures... so maybe that's all it is. I certainly understand about finances and budgets. It's just that sometimes you can spend as much with a "lesser" mechanic throwing parts at a problem vs. getting it done right the first time by someone who knows the car well.

Even if you just paid Jerry for a diagnostic, we might be able to walk you though the actual repair.

Heath

[maxnix]

Paying a "mechanic" to learn on your car can certainly be more expensive in time and labor, not to mention ignorant damamge that may not show up for miles.

[slybydesignq45t]

Paying a "mechanic" to learn on your car can certainly be more expensive in time and labor, not to mention ignorant damamge that may not show up for miles.

I couldn't agree with you guys more. Mid November I would have caught up some what after these series of repairs. After all this work was performed she drives much better as stated. I envy is some ways those who purchased these cars brand new. The car is quiet, smooth, and powerful. After they cleaned he TB I noticed how much faster my car is going and have to pull off the pedal. I hate doing anything above 72 mph, and really like sticking in the 65 mph range, but with the windows up you can't tell how fast your going and kinda have to keep looking at the Speedometer. This may be surprising to some, but I like the way my Q drives more then I do the way my bosses LS460 drives. I took his car on a long distance trip (well not to long) and found the ride not as smooth as my Q believe it or not. Its a fantastic car by all means, but when they designed the Q they know what they wanted from it. The LS460 is a superior car overall, I am just talking driving wise. Also, my boss drives his used 133,000 mile Maxima more then the LS460. He constantly raves about the Maxima. I drove the Maxima while my car was in the shop and surprisingly enough I really like it. It made me considering getting one in the future. Its a powerful humble car.

[Jesda]

The LS460 is a superior car overall, I am just talking driving wise.

That doesn't surprise me at all. The LS might be smoother and quieter, but it will never "feel" as alive as a Maxima or G50 Q. And on this forum, folks will sacrifice some luxury for performance.

Little things like feeling the grain of the pavement in your hands or feeling the motor through the shift knob goes a long way toward driving enjoyment.

[slybydesignq45t]

I tell you, in that LS460 you don't feel much of the road under you, which may lead you to believe your going with the grain of the road. I say this, because all pavements are laid for specific driving speeds and conditions. The same pavement used on streets at speed limits of 35 mph are not the same used for 45 to 50. Highways are designed with certain areas that one should feel through the steering wheel so gripping at 65 to 75 mph is better. In the LS460 I could not feel the grip at all and on the Highway it was too smooth. Now I say the Q45 was better in this department because is quiet and you can feel the grip of the road at highway speeds. This helps with directing the car when hitting curves at highway speeds, also the pavement designed to shake your front tires ever so slightly so you don't fall asleep on long trips. The LS460 lacks this feel hence you really need to watch your front end to make sure your aligned with the pavement.

The LS460 is a great car, but now I can see why the G50 is compared to a BMW more then any other luxury car brand. Even my Mercedes had way different attributes then the G50. The Mercedes seemed to be between the two in terms of handling and comfort. The G50 rides about 20% smoother and is quieter, but my Mercedes was much faster and firm on the road.

Each car manufacture has focused on something to make it stand out. I go back to my original statement, if I had owned the G50 from 0 miles I would have felt on top of the world. I don't know how it feels to drive this car with new rubber, suspension, transmission, joints all that, but each repair brings me closer to that experience.