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1991 Nissan Maxima 91 Maxima Minor Issues

Tiny
AUGNON
  • MEMBER
  • 1991 NISSAN MAXIMA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 149,000 MILES
I am a beginner and have a few questions.

I think that the throttle cable and transmission cable pressure is in correct on my car.
I have been looking for the proper way to adjust it on the net but there is nothing around.
I have the gas pedal cable tight but the trans cable a little lose the car is better than before but I still don't it is right.


Problem number two.
I have done a tune up on the car myself and only 2 things remain oxygen sensor replace and fuel filter
I tried to pull the fuel filter off but I could not with all my strength and I'm afraid to cut the fuel wires, also the cars gets bad MPG
There is no check engine light on but I've read that an aging o2 sensor can cause this.I've cleaned everything that can be cleaned and replaced
everything that can be replaced(standard tune up).


Problem number three
Sometimes my lights dim--I think it is because I have the radio and heat on--- correct me if I'm wrong the car starts up fine.


But all in all how to go about adjusting the throttle and trans cable under the hood and what to do about MPG and the stuck fuel filter(almost like
the rubber welded on the to the metal).
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Friday, March 5th, 2010 AT 4:44 AM

5 Replies

Tiny
ERNEST CLARK
  • MECHANIC
  • 1,730 POSTS
The adjustment procedures for both your throttle/transmissin cables are as follows.

1. Loosen throttle cable lock nut.
2. Tighten adjusting nut until throttle drum just starts to move.
3. From that position loosen adjusting nut 1.5 - 2 turns.
4. Tighten lock nut.

As for you poor gas mileage, yes, a bad O2 sensor can cause poor gas mileage.

To change your fuel filter (first relieve fuel pressure), once you remove the hose clamps, use a pair of plastic pliers to twist the hose back and forth until it comes off.

If your hose is stuck, it's probably old and needs to be replaced anyway. They're cheap, so don't worry about having to cut it off.

Finally, if you're new to turning wrenches, but would like to do your own work on your car, then I suggest purchasing an on-line (single vehicle) subscription to Alldata or Mitchell 1.

This service is only $25-$30 bucks and will provide you with a wealth of information, including detailed illustrations and helpful hints/tricks.
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Friday, March 5th, 2010 AT 7:42 AM
Tiny
AUGNON
  • MEMBER
  • 4 POSTS
Thank you for the reply Mr. Clark.I have been using the web to learn how to do common repairs.

I forgot to mention that there is no check engine light on but I have not had a chance to check codes.

Also

Here is what I've noticed in my testing.
Trans cable tight with no slack=car acc slow stays in any particular gear long time.
Trans cable lose car shifts sooner feels "normal" but I still think it needs to be loser, is there some time of guidelines I can follow.
The accelerator cable is fine just the other for the trans that I think it not set correctly. The shifts times With the current loose setting are
1s)t0 -15mph; 2nd)15--22mph; 3rd)22-33mph;I have not had a chance to test fourth. This is an auto transmission.I think the shifts points are 1-4 mph off. Can make them 15-25 and 25-35 and so fourth.I'm trying to keep it in multiples of 5. 5 10 15 20 35 45 etc.
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Friday, March 5th, 2010 AT 7:47 AM
Tiny
ERNEST CLARK
  • MECHANIC
  • 1,730 POSTS
I've been trying to look up some more info on your cable tightening specs, but I haven't had any luck.

If I come across more info, I'll get back to you. In the mean time, maybe another mechanic on this forum will be able to help you.
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Friday, March 5th, 2010 AT 8:04 AM
Tiny
AUGNON
  • MEMBER
  • 4 POSTS
Alright, thank you again.

Like I said if the opposite cable(non accelerator) is tight the car will stay in one gear for a long time and I can feel the shifts. If the opposite cable(non accelerator) is looser with slack it feels more normal but I think it is a few mph 1-4 too soon. When the fuel injectors were replaced the shop did not do these right because when I bought the car it was all messed up but I have fixed most of the small issues myself.
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Friday, March 5th, 2010 AT 8:07 AM
Tiny
AUGNON
  • MEMBER
  • 4 POSTS
Picture of the Cables
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Friday, March 5th, 2010 AT 12:15 PM

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