Question about 1999 Nissan Pathfinder

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Car problems Wow! youre good. Yes my idle is low! I will check those plugs and vacuum hoses. Got any other suggestions. It does happen more when i'm definitely low on gas. Thank you so much. This info has been very very helpful.

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  • piano18 Aug 20, 2008

    This website has been very helpful and the expert was great!



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Would you pelase give me a good rating ? Thanks you so much for the nice comment

Posted on Aug 20, 2008

  • Anonymous Aug 20, 2008

    Thank you so very much anytime i can be of help please let me know



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1 Answer

Have a 2001 Diamante trouble with high idle. Change the idle control valve , egr valve,spark plugs,wire,cap, and rotory, and vaccum lines. Any suggestion .

Yes I suggest the only other common issue is an engine vacuum leak, do a vacuum leak test with a can of car spray, spray around the intake manifold and vacuum hoses, if the idle changes while doing this zero in and that is the vacuum leak.

Jan 18, 2017 | Cars & Trucks

1 Answer

Suzuki super carry 1.3 engine revs high low high low high low when clutch is put down engine revs very high

wow no year car stated nor a country x10 worse.
welcome to our USA forum!
the country with ZERO, carry cars. not a one. here
and due to that , no books here nor coverage at mitchells. either.
That is a G13 engine, (not m13) is my 1st guess.
Most Suzuki's with tiny engine and run a map sensors, not MAF
so is called SPeed Density system.

if yes, the that means ALL vacuum leaks cause fast idle.,
armed with that juicy fact, we know why it races.
you never said and actual RPM so no Tachometer?
only 2 causes. a huge vacuum leak
or unlikely the ISC stuck wide open with gunk inside, (clean it?)
ISC is idle speed control.
old suzuki's had man killler ISC software, my 91 did it.
and all others like it........
it would hunt idle like mad with any vacuum leak.(of any kind)
today this is very *******, this mode. (hunt)
toyata cost them $1billion in fines for this same deal.

but Clutch drivers have no problems with idle hunt, "skills"
what year/country.?
please showa photo of engine. ?
and win. a win/win
you win and I win not guessing all that.

fact 2 , is that that hunt tells me the ISC is moving fast.
so is not stuck. (99% says R3PO)
unplug ISC see the hunt end? sure.
the ECU has lost its wits. from..... this....
it sees a massive air leak (vacuum map readings ) and then (dumbblly ) hunts it like mad, (bad Firmware code) but real.
i can demo this is seconds hood up.
1: vacuum hose fell off.
2: same hose cracked.
3: brake booster diaphragm cracked, sucking air big time)
4: lots more,. even gunk under throttle plate blocking it open.
and more. lots more. can cause lots of vacuum leaks.

Dec 16, 2016 | Suzuki Cars & Trucks

2 Answers

1999 chevy van, 7.4 v8 eng. surges and wants to dye out at idle, otherwise ok. possible causes?

fuel line, with that you most likely got ( gross, oh goodness, eww, yucky) sludge in the tank that is most likely in the lines as well. did the van sit for a long time. if so the first thing u do is drain the tank an put new fuel in it so sludge (dirt) don't happen. hope i helped good luck

Sep 05, 2015 | Cars & Trucks

2 Answers

My 1996 Mitsubishi Montero will start but not idle at all once driven. My father-in-law suggests adding some Sea-foam to the vacuum hose and the gas tank to help. My question is; where do I find the...

Back in the good old days, engines had various vac hoses that controlled other devices including the PCV valve. The idea was to use one of the vac hoses to pull SeaFoam directly into the intake and help clean deposits off the intake valves.
Today's engines have very few such hoses.
And in your case, the problem is probably dirty injectors or the throttle body itself.
So I would put the seafoam in the gas tank, but also check the throttle body to see if it is gummed up. You can use spray carb cleaner if it needs to be cleaned.

Apr 15, 2013 | 2001 Mitsubishi Montero Sport 4WD

1 Answer

I have a 92 talon, has a rough idle when coasting and has low idle when still. I replaced plugs, wires, cleaned IAC valve, mass air flow sensor is good, cleaned the throttle body, added injector cleaner,...

Yes a vacuum leak could be the problem. Try filling a spray-bottle with tap water and spraying the vacuum lines and connections while the car is running.

Sep 17, 2012 | Cars & Trucks

3 Answers

1998 Grand Cherokee Jeep...4.0..idles rough and barely keep it running at low speed..seem to run at 65 and 70mph..changed distrutor cap, rotar and plugs, and wires..

Check any rubber hose pieces between the PVC valve and the motor (intake). Normally a leaking hose will have a soft squishy area in the hose where the rubber is melting and the hose will create a vacuum leak at that point. You can tape over the squishy area with electrical tape (get it tight) and if it runs better you should replace the hose pieces. This leak will cause the motor to run very rough at idle, can cause the motor to race when starting it, can cause the vehicle to shift hard (when motor surges) and can throw scan codes indicating Lean Bank 1 AND Lean Bank 2 (presence of both codes is good indicator that vacuum leak is the cause).

Jul 25, 2010 | 1998 Jeep Grand Cherokee

1 Answer

Rough idle i have changed all coils and plugs

If your car runs rough or stops running while at a stop the main thing would be a vacuum hose leak.
What is happening is that the fuel/air mixture is off. At idle or lower speed there is more air than fuel being mixed because of the vacuum leak causing the engine to stall out.
That is why it runs fine as it warms up because the fuel mixture is richer, as the car warms up the fuel mixture decreases.
As you drive the car at normal speeds such as on the freeway, the fuel mixture increases bringing balance to the fuel/air mixture.
The vacuum leak in the hose is causing too much air to be added into the fuel/air mixture causing your engine to run lean while at an idle.
To locate the leak get a can of carb cleaner. Have someone help you keep the car running while you squirt the car cleaner around the different vacuum hoses. When you spray a section of hose and hear the engine smooth out or the RPMs increase, that area is your problem. Keep squirting the area until you are able to locate the hose with the leak.Remove the faulty hose .However if you take to a shop and they place it on the computer and tell you that the Oxygen sensor is faulty, tell them to check for a vacuum hose leak. The computer will of course report a faulty Oxygen sensor because the vacuum leak is causing the fuel/air mixture to be off.

Have you checked the EGR valve? It may be leaking, touch it with a wet finger at idle, if it is leaking it will be very hot, the cause is either carbon or back pressure transducer problem, another issue may be fuel pressure so check the pressure .
Let us know if you want to know something more else please accept the suggestion.
Thanks for contacting

May 12, 2010 | 2002 Nissan Sentra

3 Answers

1994 toyota corolla has a runs rough at idle and lacked power, would stall sometimes at stop. Also has low idle,try timming and new plugs, and checked distriburtor cap and fuel filter and fuel regulator

I have a similar problem with one of my Toyota Corollas. It's a 95 model with the 1.8L engine (7A-FE, automatic). But unlike yours, it has plenty of power while running. Here's what it does. Occasionally the engine misses. Sometimes it will die. This is most likely to happen when you start the car and put it in reverse and start rolling without giving the engine time to adjust. I've been told by some customers that it will die sometimes when coming to a stop. But this has never happened when I drive it. I don't think it's a fuel issue because the car runs just fine when it's running.

Here's what I've tried so far:

  1. Replaced spark plugs and wires.
  2. Used gasoline additive fuel injector cleaner.
  3. Checked air filter.
  4. Checked vacuum hoses for leaks.
  5. Replaced PCV valve and hoses.
  6. Cleaned the air intake and throttle body with carburetor cleaner.
So far there is no change in the problem.

What I plan to do next:
  1. Check the throttle position sensor.
  2. Check the MAF sensor.
  3. Adjust the idle via the set screw.

After that I have no idea what to do next if the problem persists. The check engine light is not on so I don't think there are any error codes. Will let you know.

Frank's Friendly Cars Maui Car Rental

Feb 26, 2009 | 1995 Toyota Corolla

1 Answer

Car problems.

Ok first you must stop allowing the fuel to get low keeit at least 1/2 tank at all times because the fuel covering the fuel pump in the tank cools it and makes it last longer remember this: its much easier to fill up the top half of the fas tank than the bottom half and cheaper too here in Wa state gas is still 4$ for reg and $4.80 for premium anyway
The fast that it starts right back up makes this problem much more broad as to what it can be. Because if it were a electronic module it would have to cool a bit before it would start. Does it Idle excessivly low now as compared to the way it used to? Theck for vacuum hoses adn caps (small plugs on the drivers side rear of the top of the engine make sure none are missing or cracked to a point where there is a hole.
Also check the air intake hose for any cracks or holes rake it off and clex it and inspect closly make sure its on completely and the clamps are tight
Does this problem happen if the fuel is half or more full if tou don't know fill it up and see and keep it more than half all the time

Aug 19, 2008 | 1999 Nissan Pathfinder

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