In fact, the 3800 Series II was on the Ward’s 10 Best Engines list 1995 through ’97. If you’re tracking down a wiring issue, Eautorepair.net is the better choice. Where did you find that you need to push the gas pedel to the floor to set the tps on the gmt 400 vortec? General Motors Issues Recall on 3800 V6 Powered Vehicles Unfortunately, that meant it had two cylinders missing in the firing order — making it a strange-sounding, rough-riding, odd-firing engine. The engine was based on an earlier 198 cu. Alldatadiy.com, on the other hand, uses the factory diagrams. Sensors and out puts calibration Let's start with the basic check list: 1. Regardless of the recent recall, the 3800 Series II has been a workhorse for GM and has provided years of dependable service. d. Remove the J 38197-1, 2 and 4 from the crankshaft balancer. Source: General Motors, External Engine: Balancing Combustion Forces, Internal Engine: Engine Build: Toyota Supra B58 Inline 6-Cylinder Engine, Engine: Diagnosing Crankshaft Position Sensors, Diagnostics: Power Window Regulator Replacement, News: Castrol To Power First Carbon Neutral NASCAR Race Team, News: EnerSys Now Battery Sponsor For NASCAR Racing Experience, Products: JASPER Offers GM 6.6L Duramax Diesel Engine, News: Applications Now Being Accepted For Mitchell 1 Scholarship, The Importance of Worn Center Bearing Replacement, In a pandemic-influenced world, driving habits may have changed, but not vehicle needs. Many car makers including GM started installing fly by wire electronic throttle bodies. Be advised that the procedure used to service the crankshaft balancer has been revised. 24508923    Manifold, Lower Intake. J 37096. Amazingly, it’s been installed in more than 6 million vehicles since 1995. Use Code: JUST4YOU. • Drill an access hole using a drill in the proper location. Affected vehicles include: 1997-2003 Buick Regal; 2000-’03 Chevrolet Impala; 1998-’99 Chevrolet Lumina; 1998-2003 Chevrolet Monte Carlo; 1998-’99 Oldsmobile Intrigue and 1997-2003 Pontiac Grand Prix. Then repeat step #3 one last time. Install the MS(Meagsquirt) ... Calibrate TPS - Throttle position Calibrate Thermistor Tables --> IAT - Intake air temperature ... the IAT is GM open element and the CLT is the stock mazda sensor. And you didn't explain what your conditions were. Unfortunately, the engine still had a severe primary imbalance because it was a 90° block with a 120° firing order. Locate the crankshaft balancer bolt. If you replace the throttle body, the PCM won’t know and will continue to use the adaptive settings as if the carbon buildup is still in place. Tools Required If the manifold is hot enough and the oil runs below the heat shield, it may ignite into a small flame and may spread to the plastic spark plug wire channel and beyond, increasing the risk of an engine compartment fire. 2. The crankshaft balancer designs can be easily identified by a dimple stamped in the face of the crankshaft balancer (see Figure 2, view B). J 38197-3 Puller Screws (Black) While the stroke for the 3.8L engine remained at 3.4” (86 mm), and the bore remained at 3.8” (97 mm), the engine architecture changed dramatically. The result was a 205 hp and 230 lb.-ft. powerplant that had better fuel economy. Measure the TPS resistance between TPS pins A and B. At WOT I am getting a .3X. The reason I asked was under certain condition GM Extended the warranty on the TPS of certain models. Abnormal Engine Coolant Consumption or Coolant Leak Degradation will appear as “pitting” of the composite material in the EGR port passage. The special tool (J 38197) has been revised to reflect the design changes and the new tool is 89017400    Gasket, Lower Intake Manifold Revised Crankshaft Balancer Service Procedure This power comes in the form of 5 Volts DC from the fuel injection computer. As the engine evolved into the Series I, a gerotor oil pump and roller lifters were added in ’86, on-center bores were added in ’88 along with the balance shaft, and a one-piece rear seal was introduced in ’90. The revised crankshaft balancer may have burrs on the slotted access holes that do not allow the proper alignment of J 38197. TurnKey install L32 3800 SuperCharged engine to your Fiero N O Longer offered at FastFieros. The Buick 3800 V6 is a fairly reliable engine, but coolant leaks on the Series II 3800 engines with the plastic intake manifold have been a problem. Castrol To Power First Carbon Neutral NASCAR Race Team, EnerSys Now Battery Sponsor For NASCAR Racing Experience, JASPER Offers GM 6.6L Duramax Diesel Engine, Applications Now Being Accepted For Mitchell 1 Scholarship, Second Generation Repairs: Servicing the GM 3800 Series II Engine, Know Your Engine When Determining Spark Plug Service Intervals. Im trying to tune a 99 fbody and cant get the tps to reset to 0%. GM throttle body relearn procedure How to do a GM throttle body relearn procedure. Refer to applicable service manual and section for correct service procedures. Watch Out! in. 3.8L V6 Buick (or Chevy, Olds, Pontiac) needs power to work.. The first Buick 3.8L was offered in the 1975 model year Skyhawk, Apollo, Century and Regal. Lineup the crankshaft balancer using the small hole to aid in the alignment of the crankshaft key. However, Alldatadiy.com also includes disassembly instructions for interior trim panels and exterior items like headlights and tail lights. If you don’t do a relearn procedure, the PCM will “hunt” for a new baseline idle. While the stroke for the 3.8L engine remained at 3.4″ (86 mm), and the bore remained at 3.8″ (97 mm), the engine architecture changed dramatically. 1. b. The TPS on the 1.8 liter engine was a little more sophisticated, it has a throttle closed switch and a variable resistor to indicate percentage of throttle opening. To obtain the latest electronic controller calibration information for your vehicle, enter the vehicle's 17 character Vehicle Identification Number (VIN) and select 'Get CAL ID'. Cool Automotive Products and Tool Recommendations, Read AUTO REPAIR ARTICLES sorted by topic, Custom Wordpress Website created by Wizzy Wig Web Design, Minneapolis MN. The hole is used to identify the crankshaft key location in relation to the slot in the crankshaft balancer. Tighten the bolt to 150 Nm (111 lb.-ft.) + 76° using J 36660. Newest design has tension belt assembly, cleaned, and blasted. It is strictly for diesels. J 38197-4 Puller Screws (Silver) You should discard the previous GM Corporate Bulletin Number 01-06-01-007B (Section 06 – Engine). To make this change, GM engineers required that the piston connecting rods be shortened 1” (25 mm), and to redesign the crankshaft. General Motors is recalling nearly 1.5 million 1997-2003 vehicles equipped with the 3.8L V6 naturally aspirated engine. a. Invert the J 38197-2 so that the leg of the tool is facing away from the crankshaft balancer. If it is outside this range replace the sensor. VIDEO: How Can You Tell If A Spark Plug Is Worn Out? J 38197-1 Pilot Screw To diagnose we have tried everything, replaced the TPS and ECM. Newest design has tension belt assembly, cleaned, and blasted. The IAC valve controls the amount of air the bypasses the throttle plate, and is used to control the idle speed of the engine. A faulty throttle position sensor sends incorrect information to the ECM resulting in various issues in the engine, its performance, and fuel economy. I looked this up in si2000 and it shows the 2000 m.y. Eautorepair.net redraws factory wiring diagrams in color and includes the component, splice and ground locations right in their diagrams. This could be related to upper intake manifold composite material that may degrade around the EGR stove pipe and could result in an internal or external coolant leak. The deck height is shorter than the Series I, which reduced its weight and total engine package size. The TPS sensor is reading incorrectly. Check out free battery charging and engine diagnostic testing while you are in store. 3. The TPS on the 1.6 liter engines has two switches in it. This increased fuel mileage by a substantial margin and provided GM some engineering success. The throttle position sensor is a simple potentiometer that uses ground and 5-volt reference inputs to produce a varying output signal depending on the position of its detection arm or shaft. It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. (If you already have J 38197, it is necessary to only order the J 38197-MOD). The pedal simply provides an electronic signal, telling the throttle body how much acceleration you’re requesting. The special tool (J 38197) and the service procedure used to service the previous design crankshaft balancer have not been revised. 1. The data is cut-and-paste compatible with HP-Tuners, but can also be reformatted for EFI-Live, SCT, and other popular tuning platforms. The revised crankshaft balancer requires the use of three bolts (J 38197-4). Top 6 Bad Throttle Position Sensor Symptoms. Stay up to date with the latest Underhood Service news. VIDEO: The Importance Of Digital Vehicle Inspections, Alternator Testing For No Charge Conditions, 7 Reasons Direct-Injection High-Pressure Fuel Pumps Fail, Proper Procedures To Maximize Fastener Life, Servicing Electronically Controlled Thermostats, Ford F-150: Lack Of Heat In Low Temperatures, Hyundai, KIA Develop GPS, Camera Connected Shift System, Engine Build: Stage 2 6.7L Twin Turbo Cummins Engine. J 38197-MOD. TPS calibration on 3800's . To meet emissions standards of the ’90s, an EGR tube was placed in the intake manifold to reduce combustion temperatures. Follow the lower and upper intake manifold installation instructions found in the Engine Unit Repair section of the appropriate service manual. However, in April, 2009, GM issued a recall on 1.5 million vehicles with this engine due to an oil leak issue that could result in a fire. The tiny thing that keeps your car working, often falls prey to regular wear and tear, and therefore must be taken care of. J 36660 Torque Angle Meter This should read 2.5-7.5kΩ. The Buick 231 cu. Install the crankshaft balancer bolt and hold the flywheel using They include wiring diagrams and technical service bulletins. TPS TEST 2: Testing The 5 Volt Reference Signal The throttle position sensor (TPS) on your . The only thing that pushing the gas pedel does is on some models is to reset the oil life index. a look at the “throttle position sensor” voltage. Note: This bulletin, issued in September 2007, is being revised to add to the 1999 model year. 3800 Series II Throttle Position Sensor Woes.... 97 Buick Lesabre 3800 Series II Any ideas? Source: GM media and Engine Builder magazine. To verify the TPS sensor and wiring: 1. A motor and gear reduction set inside the throttle body opens and closes the throttle plate to accomplish your request. 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