Offering my Services

[Rev_D21]

Hi,

I am a newbie I know but I would like to introduce myself and offer my services as a Tech. I work for a Nissan dealer in Rochester, NY. I enjoy helping peeps out diagnosing and fixing their cars. Please feel free to ask me for assistance if you need it. My name is Devin.

Thanks!

DC

[rschwalbe]

Can you give me some ideas as to where I can get a good deal on injectors and a fuel pump for a 90 240sx S13? At the present I found a place that can get me rebuilt injectors for $65 each.

[Rev_D21]

I'm not really a bargain hunter.

[240inCO]

I own a '89 240sx and recently i have been having problems with my trans, about 2 weeks ago reverse went out on me and then i was rolling backwards one day and something popped inside the trans and reverse came back..I thought everything was fine until the other day 5th gear went south on me and now it will not go into 5th even when the car is stopped and off, i talked to a local mechanic who has done work for me in the past and he said it might be the bearing on the 2 gears (5th and reverse) and to fix that would cost me about $600 which i cannot afford. Any thoughts or suggestions on what i could do?...oh yeah this prob first started when the bracket that holds the clutch pedal in position broke and the clutch was not engaging the whole way which i fixed last week with a small weld.

[rschwalbe]

I had the same thing happen to me about a year and a half ago--and $1800 later (the original quote was under $1k) and a rebuilt transmission I am running fine! Good luck in your quest to save money!

[Rev_D21]

I own a '89 240sx and recently i have been having problems with my trans, about 2 weeks ago reverse went out on me and then i was rolling backwards one day and something popped inside the trans and reverse came back..I thought everything was fine until the other day 5th gear went south on me and now it will not go into 5th even when the car is stopped and off, i talked to a local mechanic who has done work for me in the past and he said it might be the bearing on the 2 gears (5th and reverse) and to fix that would cost me about $600 which i cannot afford. Any thoughts or suggestions on what i could do?...oh yeah this prob first started when the bracket that holds the clutch pedal in position broke and the clutch was not engaging the whole way which i fixed last week with a small weld.

Find a nice used transmission and do a swap. On a RWD like yours the swap should be a cool saturday afternoon job, with the right tools of course. I wouldn't bother trying to split the old one apart and repair it.

[tnpartsguy]

Welcome Rev, Thanks for your generous offer, I am sure MANY of us will take you up on it......too bad you're not closer, I'd let you help me with my G.....

[Rev_D21]

Thanks for the welcome. I will help as much as I can from here.

[JDMaxx]

Hey Devin-I have a 92 Maxima SE A/T. My transmission has been acting up for a long, long time, and nobody seems to be able to tell me what's wrong. I'm pretty sure the problem is electrical, because when it isn't acting up it runs perfectly. What happens is that the transmission seems to upshift for no reason when I am travelling at a steady speed, whether in town or on the highway. It kind of feels like the O/D has been turned off all of the sudden, except that it happens even when it isn't using O/D. When this happens, the orange "power" light starts blinking on the A/T selector switch. I have a used replacement for the transmission computer on the way, but others have suggested a problem with the torque converter, TPS, or MAF sensor. I ran the transmission's self diagnostic last night, and it didn't report any problems. In fact, today the transmission was remarkably well-behaved after running the test last night. It acted up a little, but barely. Any ideas? Will swapping out the computer make a difference? Thanks for your help.

[Rev_D21]

Are you sure the computer you have is for that year and transmission? A good way to test the TPS and MAF sensors is the have a manual handy and a voltmeter. Back probe the sensors and get a reading under different RPMs. Check those numbers against what the books says is normal. If those check out good then I would turn my eyes on the transmission ECU. Start small and work your way up.

[JDMaxx]

The transmission ECU that has been in there is the one that the car was built with. I have a replacement that I bought on eBay that is for the correct year and transmission, but I haven't installed it yet. Like I said before, I did that transmission self-test where you turn the car on and off while changing the gear selector in a specific pattern, and the signal it gave me was that everything was normal. That includes the TPS, but not the MAF sensor. The transmission has been almost perfectly well behaved since I did the test. Is it possible that running the diagnostic reset something that was screwed up? I'm totally mystified here, and I am trying to avoid taking it in to the dealership. That may be what I have to do in the end.

[Rev_D21]

I never heard of running a diagnostic test actually curing the problem.

[JDMaxx]

I wouldn't think so either, unless it somehow reset the computer.

[Rev_D21]

Could have, unlikely but drive it for a while and see if it comes back. Note things like what RPM, what gear, outside temp, accessories on, vehicle speed. Note those each time it happens and see if there is a hidden pattern to the screw ups.

[Rev_D21]

Hey Devin-I have a 92 Maxima SE A/T. My transmission has been acting up for a long, long time, and nobody seems to be able to tell me what's wrong. I'm pretty sure the problem is electrical, because when it isn't acting up it runs perfectly. What happens is that the transmission seems to upshift for no reason when I am travelling at a steady speed, whether in town or on the highway. It kind of feels like the O/D has been turned off all of the sudden, except that it happens even when it isn't using O/D. When this happens, the orange "power" light starts blinking on the A/T selector switch. I have a used replacement for the transmission computer on the way, but others have suggested a problem with the torque converter, TPS, or MAF sensor. I ran the transmission's self diagnostic last night, and it didn't report any problems. In fact, today the transmission was remarkably well-behaved after running the test last night. It acted up a little, but barely. Any ideas? Will swapping out the computer make a difference? Thanks for your help.

I think I have found your problem. I printed out a tech tip from ASIST today that pertains to your mysterious shifting problem. Only one problem...I left it at work and I'm home for lunch right now. The good news is I will be going home from work early as I have no work to do today so I will have the info posted up here for you. The tip describes the exact issue you are having with the car. I just wanted to post this now to let you know there is hope for your problem. Look for a reply to this reply later tonight.

[JDMaxx]

I can hardly wait! Thanks ahead of time for your help.

[tnpartsguy]

OK Rev, here we go. I have a 93.5 G20 that some idiot put an aftermarket alarm, keyless, ect system on. I am trying to repair the wiring harness, and am trying to figure out the best way to get the harness out enough to recover the main body harness where this tool hacked into it. I have the main interior fuse box out, and most of the other obstructions, but I can't determain how to undo the main body harness (going under the carpet, and back the drivers side door frame) so I can get it where I can basically retape it like it was from the factory. I have an open circuit from the hazard light fuse, to the hazard switch as well, still that I am hunting down. I am not a master tech, but I can fix a lot of electrical problems (I was an electronics tech for over 12 years). I have a FSM, but it really doesn't discuss removing wiring harnesses. Any thoughts?

[Rev_D21]

Ok about the G20, I would have to ask our Infinti boys because I have only worked on Nissans.

The 92 Max:

Taken from Tech Tip Ref # FC9002117

Subject Information:

1992 Maxima (VE30DE), AT Erratic Shift

Document Abstract:

Customer Symptom: Transmission shifts erratically

Incident Description: At times the AT would downshift from 2nd to 1st or would downshift from 3rd to 1st under light throttle.

Root Cause: Electronic noise from ignition coils effecting AT control unit.

Service Procedure: Monitored AT input signals with Consult. When incident occured Consult screen would indicate "wait". When consult came back on, VSS MTR code was stored. Line pressure was OK during incident. Replaced TPS and the transmission solenoids but the continued to occur. Added auxilliary ground wires to the crank angle sensor and power transistor but the incident continued to occur. TECH LINE recommended replacing the ignition coils. Replacing the coils resolved the incident. Source: Jimmy Noles, Tommy Griner Nissan

Hope that helps !!! Revern D

[tnpartsguy]

Hey Rev,Just spent 3 hours on my back under my dash, finally got it figured out. The power for the hazard lights is fused on the main interior fuse bus. I had 12 v on each side of the fuse, but when I checked it with a test light, rather to a VOM, the light wouldn't light. I looked at the fuse box rather closely, and noticed the incoming side of the fuse holder seemed to be loose compared to the outgoing. I pulled the clip out, smashed it down closer together, reinstalled, put the wiring harness back in place, reconnected the battery, and VOILA! Hazard Lights again! Now, If I can JUST figure out what's wrong with my Keyless, I'll be set!

[JDMaxx]

So, my heaven sent friend, replacing the transmission computer won't do any good? I'm not a technical guru, so could you briefly explain to me what all is involved in replacing the ignition coils and how much it might cost? I'm not a wrenchhead, but I am able to do fairly routine maintenence mysef (for example, I managed to replace a bad window regulator by myself). Is it something that I would be able to do by myself? Once again, if you are right about this, I will owe you a steak dinner. Of course, it might be awhile before I get to Rochester...

[PalmerWMD]

Fellas:

PLEASE post your questions to him in a seperate thread from now on, as he is now an official " NICO online mechanic".

Fred...:thumbup

[studiodeluxe]

So, I a car with some serious issues but I think it's only one problem.

I have the H.U.D. problem... You know, the problem where it doesn't work. Well there is more to the story. The thing is that the sensor lights in my dash work all the time, and this includes the fuel gauge and gas light. The problem is that the dash lights and odometer dont work... That is until I drive the car for at least 45 min. but it's not consistant, if the lights and the odometer are going to come on they will come on after 45 min. but sometimes they never come on at all. Lately they havent been working no matter how long I drive. (I've only driven for about an hour and a half at any given time since I got the car)

The thing that really makes no sense to me is that when the dashlights-odometer dont want to work then the car wants to cut out at about 3000 rpm. when I say cut out I mean stop accelerating but the weird thing is that when I step on the cluch and hold it to the floor for a split second the engine will pick back up for a second or two, but only until it gets up to the rpm it wants to cut out at. If I keep it under the cut out then there is no problem... Unless you're on a Cali freeway and trying to pass some slow ****** then it seems to cut out right when I get even with the car that I'm trying to pass causing them to think I'm some loc'ed essay with issues... It continues the problem in third, fourth, and fifth gears too.

I would just replace the whole dash unit but my friend who sold me the car had replaced it when the speedo stoped working about a year ago.

Please help in any way possible. Thanks

[KSee777]

I have a 89 240SX. It's running lean as of this moment. So I'm trying to trouble shoot it by seeing if my sensors are working properly. Do you know the resistances of the MAF and water sensor? (I guess both cold and hot)

[clrkn]

Hey Devin,

Nice of you to help us newbies here. I am having trouble taking the AC vents off my 90 240 sx. Any suggestions, quick tricks ? Also my the led's on the bottom left that show the cruise / low fuel and wiper fluid are not working. One of the orange LED's in there is the only one that works. The lights are not blown, did check them, the fuse seems to be working. Any suggestions ?

Thanks in advanceKevin

[BelizePathy73]

hey rev thanks for the offer from what i read it looks like u r the man to save me i tried to post my prob here but still new to this could u please read my nissan pathfinder transmission probs under nissan online mechanic and see if u could shed some light on the situation

thanks a lotdwight

[PalmerWMD]

Post your questions in seperate threads please folks to make it easiedr for others to find them.

I will close this thread so folsk will start those seperate threads.

Fred..