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Nissan Quest Engine Issues

65 messages,  Last post on Aug 31, 2009 at 6:38 AM

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#57 of 65 gnition timing 99 Quest by mpurai Jun 21, 2009 (9:31 pm)
Hey guys, I'm confused here. 99 Quest ignition timing 15 degrees tdc (as per repair manual - disconnect tps harness) and set timing. All sites and manuals shows only one tps sensor harness but in fact there are two harnesses to the tps, one (brown)above the other (Black). Now am I supposed to take off both of them or only the one on top?? Well I did it both ways to see if it causes any difference in the resulted timing after the harness is reconnected and found that it didn't really matter - but I would just like to know what's the correct way of doing it. Thanks All.
#58 of 65 Quest problems by jaeqst Jul 14, 2009 (9:25 pm)
My 94' Quest dies when I put it into a gear (R or D...). I just replaced the fuel pump so I have eliminated this as a possible problem, any ideas? Thanks in advance for your help. Jaye
#59 of 65 Re: on a quest [jmikell] by roger40 Jul 30, 2009 (2:03 pm)
Replying to: jmikell (Jun 12, 2009 3:20 pm) I had the same exact problem, for six months. My son put a new dist . in today,my van runs like new. I bought it on e-bay for $ 148.00, and free shipping, got it in 4 days. Dont fool around with used.
#60 of 65 Distributor replacement by cchalverson Aug 12, 2009 (2:12 pm)
Replying to: jmikell (Jun 12, 2009 3:20 pm) 97 Quest with 142,000+ miles and rough idle. Just replaced the distributor with a remanufactured unit for $105 on eBay; so far so good. Great forum advice!
#61 of 65 1997 Quest Misfire problem by jquest97 Aug 26, 2009 (6:39 pm)
have a 97 nissan quest with a 3.0L motor...I have a random cylinder misfire that occurs when cruising at around 45mph at 1500rpm's.. and at wide open throttle the motor looses all power and acts like it hits a rev limiter at 4500rpm's while under load, I have replaced all 6 injectors, cap, rotor, plugs, wires, knock sensor, fuel pump, timing belt,fuel filter, air filter, mass airflow sensor, distributor, ignition coil and the pcv valve with no improvement... I took it to a local Nissan dealer and they said that it is leaning out and when they adjusted the air/fuel ratio (with some computer) it ran great but they don't know what is causing this..the only code that is on the computer is a multiple cylinder misfire.   The Van has 111,500 miles on it and has been well maintained. any help would be very appreciated, this van has turned into a money pit! Replies to this message: mpurai (Aug 27, 2009 10:03 am) mikek847 (Aug 27, 2009 11:22 am)
#62 of 65 Re: 1997 Quest Misfire problem [jquest97] by mpurai Aug 27, 2009 (10:03 am)
Replying to: jquest97 (Aug 26, 2009 6:39 pm) Most likely you'll need to check the catalytic converter. Seems like it's partially blocked and restricts the smooth flow at heavy rpms.
#63 of 65 Re: 1997 Quest Misfire problem [jquest97] by mikek847 Aug 27, 2009 (11:22 am)
Replying to: jquest97 (Aug 26, 2009 6:39 pm) I have 97 Quest and have about 190K miles on it. I am sorry to hear that you are still having problems after replacing literally ALL POSSIBLE VILLENS. I have a same problem and living with it. The minivan is still in very good shape with only one flaw that is the random cylinder misfire code. Although the engine is running rough when engine is warm, the CEL light is not on all the time. As a result, I can get the emission test passed with out much problem but this engine running rough and random cylinder misfire has been bugging me for a long time because the problem started at about 140K miles. I do not have any suggestion for you but would like to find out what may be the solution if you find out a solution. One difference between your problem and mine is that my CEL light does not come on or looses power at 45 MPH. It comes on at ideal.
#64 of 65 Rough Engine Idle 99 Mercury Villager/ Nissan Quest by haugh Aug 30, 2009 (4:39 pm)
1999 Mercury Villager: approx 150,000 miles   Had a rough engine idle at stop lights. Occasionally the knock sensor would be tripped and sometimes another code. Checked vacuum hoses, catalytic converter, had all the belts replaced including timing and water pump, a few other things and eventually replaced the distributor yesterday. Engine appears to run smoothly now at stops. No more rough idle.
#65 of 65 Rough Engine at Idle - Quest/Villager by mikek847 Aug 31, 2009 (6:38 am)
I've been folloing this thered for some time now. I've seen posts about this problem and it seems that owners have replaced many parts but still having problem. Yes, there is a chance that the posters with a problem resolved stop posting. I've seen from injectors to blocked air flow. I've seen problem with ECM power connection at the ECM unit. I've seen distributor assembly too. Some people said after the distributor assembly has been replaced, the problem came back. Distributor assembly is pretty expensive to replace.   Although the symtoms you have described is very much like mine, it seems that your engine is different than mine. Mine has 3.0 liter engine. I have been living with it for last 4~5 years. Please keep me posted if the problem is gone for good. Also if you could e-mail me with the price and the source where you have purchased the distributor assembly, that would be appreciated too. mikek847yahoo.com. Thanks in advance.

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