Question about 1998 GMC Jimmy
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Posted on Jan 02, 2017
SOURCE: 95 gmc jimmy engine codes
9141 does not exist I will assume it is DTC P0141 HO2S Heater Performance Bank 1 Sensor 2
The VCM has the capability to monitor this process by using the Heated Oxygen Sensor (HO2S Bank 1, Sensor 2). The HO2S (Bank 1, Sensor 2), located in the exhaust stream before the catalytic converter, produces an output signal which indicates the storage capacity of the catalyst; this in turn indicates the catalysts ability to convert the exhaust emissions effectively. If the catalyst is functioning properly, the HO2S signal will be far less active than the signal produced by the Heated Oxygen Sensor (Bank 1, Sensor 1).
When the HO2S temperature measures below 360°C (600°F), the sensor will not produce any voltage and will behave like an open circuit. This will result in an Open Loop operation.
The HO2S heater provides for a faster sensor warm-up which allows the sensor to become active in a shorter period of time and remain active during long extended idle. The DTC P0141 determines if the HO2S is functioning properly by checking the response time of the sensor. This DTC is a type B DTC.
Posted on Dec 06, 2008
Code 1682 indicates low battery voltage. This could be a problematic alternator, which would likely cause misfiring. Autozone should be able to check this for you for free.
Code 1391 indicates the computer can not see the crank or cam sensor signal. This would likely be a result of the misfires.
Code 0320 indicates the crankshaft position sensor reference signal could not be found while the engine is cranking.
All of these issues point to either a cam/crank sensor malfunction or a charging system problem, either or both of which could cause the misfiring.
Posted on Sep 06, 2009
Hi, the 4.3 liters have an injection system on them that can leak and will show up as a misfire. it is common but elusive to find. you might consider taking the van to a repair shop to have the problem diagnosed and go on from there.
Posted on May 22, 2010
i have a 96 and an 01, go under the truck from behind the drivers side front tire, the drain plug is at the back of the oil pan just behind front skid plate, the oli filter is right behind the front bumper , there is a trap door to get to the filter, but that's only for 4x4 or awd modle's, 2wd filter's are on the drivers side of the enging infront of the starter
Posted on Jun 06, 2010
Testimonial: "very helpful. thanks"
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