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Vans & Minivans Nissan Quest 2000 Quest, idle changes with foot on brake in drive.
19 messages, Last post on May 18, 2009 at 8:04 AM
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| When I stop at an intersection and have my foot on the brake in drive. The idle drops down and up. Sometimes it does it once and sometimes several times. I tried the timing belt and now the distributor. When I picked the van up after the timing belt I drove it for 15 minutes or so and when I stopped at a stop sign the idle would drop down and up. It was more like a bump in the idle, like when the air compressor kicks on. When I accelerate it goes back to normal. I changed the distributor yesterday and talked to my mechanic. He let the van run in gear and it never changed the idle . He drove it for about 15 minutes and when he returned to the shop the idle bumped 1 time. What next? OR do I just drive it a day or 2 to see if it works itself out with the new distributor? | |
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Similar to my problem and nobody answered. Looks like I am up the creek. His problem was acceleration going up and down, my van produces a jolt every few seconds while stopped. At least now I know it's not a distributor, which I was planning to change. I guess I'll just wait till the computer gives me a code. 
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Replying to: petaka (Apr 15, 2009 5:44 am) You could try the Got a Quick, Technical Question? discussion or Edmunds Answers. Answers gets a different crowd than the forums. Please report back here if you learn anything. Steve, visiting host |
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Replying to: steve_ (Apr 15, 2009 7:53 am) When I got home I popped the hood and listened to the engine. It makes a ticking sound every time it shakes. Just like the sound it makes after been turned off. We are suppose to have a better day tomorrow, so I'll keep searching and hoping for a miracle. |
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Replying to: petaka (Apr 15, 2009 1:03 pm) You could swing by an auto parts store and see if any codes are being thrown.
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Replying to: steve_ (Apr 15, 2009 4:08 pm) |
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this seems to be a problem for this particular year...I have 160K on my 2000 and up until now have had no unfixable problems. here is what i have done to unsucessfully fix this problem: spark plug wires spark plugs O2 sensor upstream--OBDII was coding this one Air intake sensor OBDII was coding this one also Fuel filter Checked all vacuum hoses I think that my problem may be distributor related since timing jumps all over the place with i put a light on even at when it is idleing smoothly HOWEVER i read in another thread that a quest owner simply tightened the ground wire on the PCM and problem gone. Another mentions the camshaft position sensor located in the distributor, but if you have replace the distributor, what are the chances of them both being bad? here are some codes i have been getting P0130 Closed Loop, Bank 1 Or Front O2S, Bank 1 P1148 Closed Loop, Bank 1 P0301 Cylinder 1 Misfire I have replaced the knock sensor on this car (10 hour job) and noticed that some of my "O" rings for my injectors were worn out and need replacing. I am not sure but i believe that this would also cause rough idle if air were leaking in however it would be rough idle all the time. Check the bolts for tightness on the plenium (upper intake mainfold), although this would cause car to idle rough all the time. The fact that it runs rough when warm (on my car) and not cold leads me to believe that it is still a timing or PCM issue. I really wish i could solve this one as my registration is coming due and i cannot pass with check engine light on! One last note: my car does miss after heavy acceleration when gas pedel is released. Again HAS TO BE TIMING! Anytime the car is changing RPMs the distributor tells spark plugs when to fire based on position of crankshaft, correct? |
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Replying to: petaka (Apr 15, 2009 1:03 pm) how many miles on car and have you had timing belt changed? if you threw some teeth on timing belt ticking could be valves not opening and closing correctly.
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Replying to: hunter38 (Apr 15, 2009 8:07 pm) I wonder if it's at all related to the throttle plate? I clean that on mine every ~30,000 miles or so, but only when it makes my '99 hesitate pulling away from stop signs. |
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