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Ted J 
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Joined: 05 Jul 2010
Location: La Crosse, WI
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 Topic: Nissan Problem
Posted: 02 Jul 2023 at 9:54am |
Hey Guys,,,,, My son has a 2011 Nissan Frontier with a 4.0 V6 in it. His problem is that stalls out in park and then restarts with no problem. Coming to a stop it also stalls out and then restarts. It is NOT a fuel issue as it runs great until he has to stop.
What kind of solutions are there?
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"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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steve(ill)
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Location: illinois
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Posted: 02 Jul 2023 at 10:08am |
not car specific... but i have heard of some transmission problems with Down Shift that will cause a stopping car to die... Transmission will not down shift in time...
Since yours also does it in PARK.. it might be more of a LOW IDLE PROBLEM.. That could be a manual stop for the air inlet, or could be air inlet sensor, throttle body valve sticking or dirty/ pluggage.
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Like them all, but love the "B"s.
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steve(ill)
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Location: illinois
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Posted: 02 Jul 2023 at 10:12am |
some ideas......
Idle Speed Control Actuator or Idle Air Control Valve (IAC)Generally speaking, this device controls the engine’s idling rotating speed (RPM). Older vehicles with a carburetor use the Idle Speed Control Actuator. However, newer fuel-injected engines use the Idle Air Control Valve (IAC). A damaged or clogged component disrupts the signal, causing the RMPs to drop enough to stall your vehicle at an idle. Exhaust Gas Recirculation Valve (EGR)An EGR valve is designed to open and close as needed to allow exhaust gases into the intake manifold. A common issue with the EGR is carbon deposit build-up causing malfunctions. Symptoms can include rough idling, stalling, and a lit Check Engine light. Electronic SensorsModern vehicles are equipped with lots of sensors. They monitor virtually every system in your car. When one of them goes bad, it may or may not trigger your Check Engine light. The trick is to figure out which sensor is glitching and get it replaced. A faulty sensor may also indicate a bigger issue is lurking, requiring a more in-depth inspection. Here are just a few sensors that can contribute to car stalling. - Mass Air Flow Sensor (MAF)
- Oxygen Sensor
- Throttle-position Sensor (TPS)
- Crankshaft-position Sensor
- Camshaft-position Sensor
- Manifold Pressure Sensor
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Like them all, but love the "B"s.
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Codger
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Posted: 02 Jul 2023 at 2:42pm |
Not really enough information in your post to accurately describe the symptoms but the first thing to do is clean the throttle body behind the butterfly flap in front. Remove from the engine if needed for access as most of the electronic variety's are these days, (no throttle cable). Also remove the IAC, (Idle Air Control Motor) as Steve mentions as these breath around the butterfly flap when the throttle is at the low idle position. Liberally blast clean with spray carburetor cleaner through any passages and ensure the IAC motor is clean on it's plunger tip, and the seat it mates against. Not a bad idea to replace the IAC motor anytime it is removed as these are ECM controlled and if sluggish in action can be a real PIA to prove and isolate. They are not expensive usually.
With no codes being thrown, many sensors can be ruled out but from the limited information given, I would start with the throttle body unit. I'll bet it's black and crusty behind the butterfly flap as all get over time and mileage.
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mdm1
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Joined: 12 Sep 2009
Location: Onalaska, WI
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Posted: 02 Jul 2023 at 3:14pm |
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Hey Ted it's like my truck. Remember going to Lonn's and it shut off at the stop sign? Started right up when I took my foot off the brake. I know no help!
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Everything is impossible until someone does it! WD45-trip loader 1947 c w/woods belly mower, 1939 B, #3 sickle mower 1944 B, 2 1948 G's. Misc other equipment that my wife calls JUNK!
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DMiller
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Posted: 02 Jul 2023 at 3:33pm |
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On Throttle Bodies, be extremely Gun Shy of using ANY Form of a Solvent on these INTERNALLY, there is a Coating, EXTREMELY Thin that once removed makes the TB as useless as any chunk of garbage aluminum. The Bodies are Cast and POROUS, that is why are Coated, will end up with a uncontrollable vacuum leak the IAC will not control for.
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Codger
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Posted: 02 Jul 2023 at 6:29pm |
 DMiller wrote:
On Throttle Bodies, be extremely Gun Shy of using ANY Form of a Solvent on these INTERNALLY, there is a Coating, EXTREMELY Thin that once removed makes the TB as useless as any chunk of garbage aluminum. The Bodies are Cast and POROUS, that is why are Coated, will end up with a uncontrollable vacuum leak the IAC will not control for. |
I'll have to read up on this as have never seen such. I'll be in to the Nissan dealer ordering up some parts for my own car tomorrow morning and will ask a mechanic I know that has been there several years if he's seen this on Nissan products.
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Codger
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Posted: 02 Jul 2023 at 6:39pm |
Found this on a simple internet search. I don't really see anything outside of common sense myself so of course don't submerge the unit, and don't force the butterfly flap open:
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steve(ill)
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Location: illinois
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Posted: 02 Jul 2023 at 10:09pm |
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Like them all, but love the "B"s.
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Codger
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Posted: 03 Jul 2023 at 7:07am |
Talked to the guy I was going to visit on the phone during his commute to work. Throttle body plugging is common on those engines and he always removes the unit from the intake to clean it on the bench. Says if cleaned on the vehicle the problem will return in a few months as not accessible enough for thorough cleaning unless removed from engine. Clean thoroughly with spray carb cleaner and lint free towels, and reassemble using new gaskets and seals.
Though not necessary clean as deeply into the intake manifold plenums as possible also with lint free towels and carburetor cleaner to extend the next cleaning interval. They have an intake cleaning apparatus at the dealership which is used after the throttle body is cleaned by hand and reassembled onto the engine.
The above is just a repeat of our conversation but basically the same as I've done for many years. You can clean these on the engine, but they will plug much faster again than if removed. Good air filter maintenance also extends the service interval for these in my experience.
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HudCo
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Posted: 04 Jul 2023 at 10:29pm |
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any transmission codes
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Ted J
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Location: La Crosse, WI
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Posted: 05 Jul 2023 at 6:32am |
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I don't know how good his code reader is, but he says that it is not throwing ANY codes.
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"Allis-Express"
19?? WC / 1941 C / 1952 CA / 1956 WD45 / 1957 WD45 / 1958 D-17
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