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Despite advertising claims, Truck Trend had done a test using a K&N FIPK system. As K&N is an advertiser in their mag, the test results showed a 2 HP gain +- 2HP.
One of the things that a lot of K&N owners talk about is the oil in the filter being transferred to the MAF. While I owned one this never happened. I guess depending on what you're looking for any of the systems you list will work. That is an increase in the intake suction noise with little gain if any in the HP and MPG.
I've read nothing that casts Frontier's future in doubt. Some dealer salespeople have been quoted with some whacky tales of Titan, Xterra or Frontier demise, but none of these have ever been supported by fact. It's clear that sales of these are in the doghouse, but I'd think that Nissan would want to maintain a practically-sized truck like Frontier in their line.
drive shaft and everything else I could thing of. After taking it to several Mechanics, had all kinds of answers, rear end mostly. On many occasions I would
go to a Mechanic and could not duplicate the noise. One last resort, I drained the rear end and replaced the fluid. Checked the book to might sure I was using the right type, think mine was a non slip differential. Low and behold never heard the noise after that. Now it could have been low to start with, or when I had work done on it and the drained the rear end, they may have replaced the fluids with the wrong type. Just like yours, only did it in the turning position and especially when backing up.
when I remove the key from the ignition the chime stays on, I have to tap the ignition once or twice to get the chime to turn off. What could this be? I have checked the wiring and fuses, they are all good to go. stumped!
I replaced the timing chain on my 96 with the same engine at beginning of the summer, and as long as the oil pump is correctly installed (all the feed holes line up to the block), the oil pump is flush to the block when installed (so that you know the oil pump/distributor drive shaft is properly meshing with the crankshaft gear and the shaft end keys are appropriately inserted into the oil pump & distributor ends ), and your distributor is spinning/timed correctly, there isn't much else here to look at. Installing the new oil pump eliminates the pump as a variable since both units act the same.
I agree that not removing the oil pan should not be a problem - I did mine just to make sure everything was leak free when I was finished but there was no mechanical reason to need to do so. It definitely agree that it sounds like the proper next step is to remove the pan to make sure that excess silicone sealant didn't fall in the sump and is now clogging the screen. I found some crumbs in my pan when it was removed, but if I remember correctly, not near enough to cause it to stop the oil flowing.
I think there might be a slight possibility of installing the oil pump backwards at 180 degrees or something, so look closely at its alignment (though I am not entirely sure you would be able to get all the bolts in correctly, and think it would likely spring a leak since the oil pressure would surely cause the gasket to fail).
Good luck!
Rule out the battery first by trying to jump-start your car or having the battery tested. If you can start the vehicle by jump starting, but then it dies shortly after the jumper cables are removed, there is a good chance it is the alternator. Running a voltmeter from a positive connection to ground should return greater than 13.0 Volts (14.0+ is ideal) when the motor is running.
Assuming the battery (and alternator) can be ruled out, if you have the proper equipment, I would next try remote starting the engine via connecting the positive lead of the battery to the starter motor and solenoid, bypassing the ignition circuit altogether. This would allow you to test the starter without removing it. Removing the starter is possible from under the car and through the passenger-side wheel well (after removing the rubber shield), but it is a real PITA to remove & replace . I ended up pulling mine out to have it tested, but this wasn't my problem.
The other two likely sources of problem are the clutch inhibitor relay and the clutch inhibitor switch. Both of these items are used to prevent the engine from being started while the clutch is not pushed in.
The clutch inhibitor relay is also referred to as the starter relay and clutch relay, depending upon where you are reading. Prior to 1995 most Nissan trucks (and apparently a wide variety of nissan cars) used an extra-wide blue relay with two plugs below. These were often located on the passenger-side inner fender wall, just behind the battery. The 95-97 trucks do not have these extra-wide relays installed, but instead use instead the more traditional square elongated-cube relays for the clutch inhibitor/starter relay. On my 8/96 truck, this was located in a five relay compartment on the passenger inner fender wall, running f-r towards the base of the hood. The clutch inhibitor relay was clearly labels under a black plastic cap, and the relay itself was the second one towards the front - blue with nissan part #: 25230-9B900. A Nissan direct replacement relay with same part number cost $27.50 at the local Nissan dealer. Replacing this relay solved my starting problem, and the engine starts much more quickly now than it ever has in the 1.5 years I have owned the vehicle. It should be possible to test the relay outside of the vehicle or bypass the relay "switch" to see if the engine now starts, but my attempts at this were unsuccessful do to an unrelated issue, so I defer you to other internet sources for a test procedure on how to do this.
The Clutch inhibitor switch is a part the Nissan parts counter person said is among the most likely causes of no starting with these trucks, so I went ahead and picked one of these switches up at the same time. My replacement switch - nissan part #: 25325-D400E - cost me $23.65. The most difficult part of this job for me was getting the electrical connector unplugged from the back. Access is quite limited, and the plastic connector which clicks in is particularly stiff and was impossible to do with my bare hands. I used a mini pliers with curved tongs; squeezing the connector allowed the connector to be pushed back off of the switch. It should be easy to bypass the switch for testing purposes by disconnecting the plug and using a wire or a screwdriver to short the wires while trying to start the engine.
To remove the switch from its bracket you will need a 14mm wrench - I used a very short stubby one, and still had difficulty finding enough room to maneuver and loosen/tighten the bolt. Be careful when you reinstall the new switch so that it is full engaged, but not taking the full force of your foot every time the clutch pedal is engaged. I adjusted mine by holding the pedal fully in, and then turning the switch into its appropriate placement - It turned relatively easy as I screwed it stopped turning - at this point I backed it off half a turn, and then tightened the 14mm bolt.
I hope this write-up saves someone else from repeating the time I spent, particularly the 95-97 truck owners that are told they have the extra-wide relay installed in their truck. Most after-market part stores will try to sell you one of these even though they don't exist in the later years...
they always go bad.
Switch them out for new one and the problem will be gone
cover off and you will see it on the one side.
to test it make the engine turn but dont let it run. Check on the tensioner to see if is
pushing, if not you will have to replace it .
or you will damage something else.
Fantastic for hunting here in colorado and as a work truck.
My only complaint - the mileage. How can I improve it? Anybody got any ideas?????
I have changed oil in transfer case to lighter viscosity and optimized the timing. Keep the tires inflated. What else can I do?
Spark plug wires?
Best plugs?
1) IAC Valve Cleaning - Seen online a tutorial on how to get some electric parts cleaner, remove the IAC valve and clean it myself. Wondering if I should be worried about any seals between the valve and the rest of the truck. (This repair is because I get a rough idle when coming to a stop. The truck almost stalls and then comes back. I've done a spray cleaner that I've had to spray while manually gunning the engine which has worked a couple times but never for too long. Was told this was a viable alternative option to purchasing a new one)
2) Shock Absorbers - Both front and back are rusted out and shot. I suspect it's the cause of a few of my woes. Are they replaceable by myself or should I be worried about a spring shooting me in the head and onto the garage wall? I have access to a lift so no worries about getting crushed under a failed jack.
3) Belts - How difficult is it to replace the belts? It looks like there is hardly any room to work when it comes to these.
Also - Occasionally after it's been going for a bit i'll get a clicking sound until I let it sit for a minute. Can't tell if it's exhaust related or not, already had the exhaust replaced but I think stuff may be loose with all the lack-of-shock bouncing around.
-Sincerely
Not Interested in spending oodles at the Mechanic.
-Changing the shocks are a no brainer especially if using a lift. I'm assuming whoever's lift you're using will be available for consultation.
-Belts will take awhile but not hard to do.
-The clicking you're hearing is the exhaust system cooling and contracting.
usually when I start (even when cold), the starter and the engine fire up without hesitation.
just yesterday and since then, the starter motor is slow, the engine finally starts and it sounds like I am dealing with a dying battery.
I replaced the battery today and it does the exact same thing.
any thoughts?
thanks!
Good Luck
Is the water pump doing its job to the best of your knowledge - the belt is not slipping, the fan clutch seems to work with medium resistance, etc.
If everything seems fine there, you might try changing out the temperature gauge sensor - I had a Honda Civic that overheated once and the coolant temperature sensor went bad in a similar way. It was great at first, and then once it got up to operating temperature would rise to the top of the gauge, and then dip back down occasionally. It won't cost much, and will eliminate that as a possible culprit/false-positive.
Everything else about the vehicle seems to function okay? Brakes not dragging, transmission shifts normally (as an automatic), no unusual noises?
Please let us know if you solve it.
I had it towed to an auto repair shop and the guy there said he was 90% sure the problem was the fuel pressure regulator. I was told that the gas had flooded the cylinders and probably ruined the rings and so forth. He said that even after ordering the regulator, new plugs, points, distributor, etc., etc., etc., that it still might not run. (Due to loss of compression & that they still aren't sure what was causing the problem.) The original quote to fix everything was $863, and now he is advising me to cut my losses & have it towed by a salvage lot. (I owe $187 for the diagnostic & the truck sits in their parking lot.) Advice?
It has started "cutting out" or "bogging down" when I press the accelerator down too far. Down to the cutting out part, it runs fine. I can press the accelerator down far enough to run at 70 miles per hour...which is plenty for me, since I try to keep the little beast at about 63 miles per hour anyway.
The cutting out clears up when I raise the pedal.
Does anyone have an idea of what might be the problem?
Check to see that the Alternator is charging. An easy test for this is to watch the headlights, go from idle (About 800rpm) and up to about 1500-2000rpm. When the engine revs up higher, the lights should go slightly brighter.
The Alternator is probably not charging enough to maintain high enough voltage to operate the onboard computer system and ignitiion systems.
Regards, Gary\