Iamstaypuff Posted June 5, 2007 Share Posted June 5, 2007 Well as it says in the title, my engine wont ide and i'm tired of throwing money at it. My problem is if i just start it, it dies. now if i start it and hold it at 2500 rpm till just a couple seconds after the fan clutch kicks out, it will do ok... for a while. then after you have been driving long enough to get the engine up to running temp, then say you pull up to stop at a light or you have to slow to turn a corner, it will die. once its warm if you let it drop below 750rpm. dead. put in P or N and restart. I have replaced: Fuel Filter Fuel Pump Ignition Distributor Inanition Coil & Module Throttle body Base Gaskets& Heater Ignition Wires O2 Sensor Injectors Spark plugs Throttle Positioning Sensor Any and all info you can provide would be great! PLEASE HELP! thank you Link to comment Share on other sites More sharing options...
88pathoffroad Posted June 6, 2007 Share Posted June 6, 2007 Have you tested compression, fuel pressure and verified timing yet? Tell us what you've tested or checked. It could be many, many things. Link to comment Share on other sites More sharing options...
jj big shoe Posted June 6, 2007 Share Posted June 6, 2007 Have you checked your vacuum lines? There's a small one on the rear underside of the air filter housing that popped off on my '87 and drove me nuts for a while. It would run, but caused a really rough idle. Link to comment Share on other sites More sharing options...
Iamstaypuff Posted June 8, 2007 Author Share Posted June 8, 2007 Cant really name any spesific tests, cause i dont really know. all lines from the air filter seem to be in their proper position, would like to do compression test. any idea how? my uncle is a mechanic and it seems like he was just throwing parts at it, and now he has just kinda pushed it aside. i need to make this work so i guess im flying solo, so any ideas/instructions are GREATLY appreciated. Link to comment Share on other sites More sharing options...
Iamstaypuff Posted June 15, 2007 Author Share Posted June 15, 2007 Compression, fuel pressure and timing all seem to be in proper working order. Think its just time to sell it? Link to comment Share on other sites More sharing options...
jj big shoe Posted June 16, 2007 Share Posted June 16, 2007 Did any of the work you did make any difference at all? Sorry, but I'm no mechanic plus not being able to see the problem in person makes it near impossible for me to give you any real help. Maybe post your problem on some other boards like nissan4wheelers.com and 4x4parts.com. You might get some other things to check out before throwing in the towel. Good luck and be sure post back if you find the trouble. Link to comment Share on other sites More sharing options...
88pathoffroad Posted June 16, 2007 Share Posted June 16, 2007 I'd suggest that the time has come to start taking things apart and doing some heavy duty cleaning. Clogged EGR passages are very common, as is a rusted out or non-working carbon canister and AIV case, which may all affect idle. When it gets to the point that nothing looks wrong and you've spent that much on it, it's time to start removing things and inspecting each one to make sure they work, instead of assuming they do or they should. When I took off my TBI, I was horrified to find that the EGR passages inside the intake were completely clogged shut with black crusty carbon and deposits. Link to comment Share on other sites More sharing options...
avaholic Posted June 28, 2007 Share Posted June 28, 2007 Well as it says in the title, my engine wont ide and i'm tired of throwing money at it. My problem is if i just start it, it dies. now if i start it and hold it at 2500 rpm till just a couple seconds after the fan clutch kicks out, it will do ok... for a while. then after you have been driving long enough to get the engine up to running temp, then say you pull up to stop at a light or you have to slow to turn a corner, it will die. once its warm if you let it drop below 750rpm. dead. put in P or N and restart. I have replaced: Fuel Filter Fuel Pump Ignition Distributor Inanition Coil & Module Throttle body Base Gaskets& Heater Ignition Wires O2 Sensor Injectors Spark plugs Throttle Positioning Sensor Any and all info you can provide would be great! PLEASE HELP! thank you i'm having the exact same problem, so make sure to post if you find anything Link to comment Share on other sites More sharing options...
Casey.T Posted June 28, 2007 Share Posted June 28, 2007 Is the ECU providing you with any codes? Link to comment Share on other sites More sharing options...
Iamstaypuff Posted July 12, 2007 Author Share Posted July 12, 2007 No ECU is throwing no codes. My uncle seems to think it is the ECU. anyway to test before i go spend another $300? Link to comment Share on other sites More sharing options...
GhostPath Posted July 12, 2007 Share Posted July 12, 2007 (edited) No ECU is throwing no codes. My uncle seems to think it is the ECU. anyway to test before i go spend another $300? Don't the TBI trucks have some sort of idle control mechanisms? Perhaps that has clogged or is not functional? There are plenty of people on here and on eBay with known good working ECUs that want far less than $50 for their ECUs, not $300. Edited July 12, 2007 by GhostPath Link to comment Share on other sites More sharing options...
ride4thrill Posted August 11, 2007 Share Posted August 11, 2007 I had the same problem and did everything that you have done if not even more. This is what finally fixed the problem. I cleaned the idle air control motor (valve). It was clogged up. Here is a link on how to clean it. http://www.crossfire.homeip.net/tech/iac.pdf http://www.autoshop101.com/forms/h60.pdf Link to comment Share on other sites More sharing options...
Iamstaypuff Posted August 16, 2007 Author Share Posted August 16, 2007 Mine has no IAC motor Link to comment Share on other sites More sharing options...
Vsicks Pathy Posted August 16, 2007 Share Posted August 16, 2007 (edited) I have replaced: Fuel Filter Fuel Pump Ignition Distributor Inanition Coil & Module Throttle body Base Gaskets& Heater Ignition Wires O2 Sensor Injectors Spark plugs Throttle Positioning Sensor Any and all info you can provide would be great! PLEASE HELP! thank you The very first thing I would have looked at is not mentioned in your hit list. It sounds like the car is starved of something it needs to run properly. Have you looked at your air filter yet? Edited August 16, 2007 by Vsicks Pathy Link to comment Share on other sites More sharing options...
McClurgM Posted August 18, 2007 Share Posted August 18, 2007 Distributor? my pathfinder is completely sluggish at low rpm past 2500 or so its ok. I need (so i think i need) a new distributor. Just a guess.... Matthew Link to comment Share on other sites More sharing options...
ride4thrill Posted August 20, 2007 Share Posted August 20, 2007 Mine has no IAC motor My bad pleaced the wrong comment to your problem it was the distributor cap. I got it at Autozone for $20 dollars. Sorry once again. Before you buy a new one take it of and get some sand paper and clean it from the inside. If it improves a bit get a new one. Link to comment Share on other sites More sharing options...
papajop Posted August 20, 2007 Share Posted August 20, 2007 Sounds like a typical case of an engine sucking air somewhere where it shouldn't. Check all vacuum lines and connections between the throttle house, manifold and head. Otherwise: Have you checked the voltage output from the lambda sensor? Have you done an emission analyze? Everything OK with CO, HC and lambda value? Have you removed and thouroughly cleaned the throttle house? Are all the vacuum hoses connected to the right place? Link to comment Share on other sites More sharing options...
trogdor Posted August 22, 2007 Share Posted August 22, 2007 I had an 88 that would do the same thing and I found that it was an air hose in the front part of the motor. It was right next to a belt, and the hose moved and the belt put a hole in it and as soon as I fixed it the car ran great. Link to comment Share on other sites More sharing options...
RedPath88 Posted August 22, 2007 Share Posted August 22, 2007 Perhaps you should take the "check vacuum/air lines" one step further and just head down to the local parts store and buy enough new hose of each size and replace them all. It won't cost to much and even if it does not fix the problem you will at least be sure that it's not the hoses. It will also give you a perfect opportunity to check all the hose fittings, couplings and T's for cracks Link to comment Share on other sites More sharing options...
Vsicks Pathy Posted August 22, 2007 Share Posted August 22, 2007 I'd hasten to say the he has resolved the problem already. Has noone noticed the lack of reply? One can only assume it has been fixed. As to what the fix was.... who knows! Link to comment Share on other sites More sharing options...
Iamstaypuff Posted August 28, 2007 Author Share Posted August 28, 2007 Still havent fixed it. I thank you all for all your comments and suggestions. Not sure yet if i'm going to try replacing all the hoses. I'm in the process right now of buying a different car. a mercedes benz 300se. I just cant fight this thing anymore. After I pay off the benz i'm just going to sell the pathy as-is. I paid 1600 for the truck and i have put about 1100 in it in parts, i cant do it anymore. Thanks again everybody. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now