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about a recall of more than 618,000 model year 2011-2014 Kia Optima, 2012-2014 Sorento and 2011-2013 Sportage vehicles because the Theta engine bearings wore out too early and caused the engines to seize. Kia said it didn't recall the vehicles in 2015 when
Hyundai first recalled its cars because the Theta II engines in the Kia vehicles were built on a different production line and had different problems than Hyundai. In addition to customers complaining about the Theta II engines, a Korean whistleblower who worked for Hyundai as an engineer let NHTSA know what he knew.
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878:. Compression ratio is 11.3:1, early versions were rated at 201–203 PS (148–149 kW; 198–200 hp) at 6,300 rpm and 25.5 kg⋅m (184 lb⋅ft; 250 N⋅m) of torque at 4,250 rpm while later versions were rated at 188 PS (138 kW; 185 hp) at 6,000 rpm and 24.6 kg⋅m (178 lb⋅ft; 241 N⋅m) of torque at 4,000 rpm.
523:, and the Hyundai Motor Company for developing a line of shared four-cylinder engines. Each manufacturer configured their variants of the initial design differently based on their needs. In 2009, Chrysler bought out Mitsubishi and Hyundai's stake in the joint-venture; however, each company retained rights to build the engines.
1252:
Hyundai and Kia vehicles equipped with Theta II engines (GDI) were recalled, due to the fact that those engines were, and continue to be, the subject of an investigation by the
National Highway Traffic Safety Administration (NHTSA). Safety regulators are investigating if Hyundai and Kia did enough in
1017:
The high power version of the second iteration uses a bigger turbocharger to improve power, its used in the i30N and
Veloster N, compression ratio is 9.5:1 and the engine develops 250–275 PS (184–202 kW; 247–271 hp) at 6,000 rpm and 36 kg⋅m (260 lb⋅ft; 353 N⋅m) of torque
618:
The 2.0L version is an inline 4-cylinder engine that carries a bore and stroke of 86 mm and a 10.5:1 compression ratio; the engine makes 144–151 PS (106–111 kW; 142–149 hp) at 6,000 rpm and 19.1–19.8 kg⋅m (138–143 lb⋅ft; 187–194 N⋅m) of torque at 4,000–4,250 rpm. It
1276:
On
December 1, 2020, Hyundai and Kia recalled 423,000 vehicles equipped with various engines following a joint review by Hyundai and the NHTSA, of which the 2.4L Theta II MPI engines were a part of. This marks the first instance of the MPI variants of these engines being recalled. Affected vehicles
1009:
The first iteration of 2.0L T-GDI engine was used in the sixth generation Sonata and third generation Optima, compression ratio is 9.5:1 and the engine develops 261–278 PS (192–204 kW; 257–274 hp) at 6,000 rpm and 37.2 kg⋅m (269 lb⋅ft; 365 N⋅m) of torque between 1,750
975:
For the facelifted 2013–2014 Genesis Coupe, the engines got upgraded with a new twin-scroll turbocharger, compression ratio is 9.0:1 and the newer version now producing 260–264 PS (191–194 kW; 256–260 hp) at 6,000 rpm and 36 kg⋅m (260 lb⋅ft; 353 N⋅m) of torque between
652:
The 2.4L version is an inline 4-cylinder engine that carries a bore of 88.0 mm, stroke of 97.0 mm and a 10.5:1 compression ratio; the engine dry weight is 146 kg (322 lb) and it makes 165 PS (121 kW; 163 hp) at 5,800 rpm and 22.3–23 kg⋅m (161–166 lb⋅ft;
1260:
By April 2017, Hyundai expanded the 2015 recall by including another 572,000 vehicles with Theta II engines, including 2013-2014 Hyundai Sonata and Santa Fe Sport vehicles. Hyundai told safety regulators the same metal debris problem caused the expanded recall. Near that same time, Kia told NHTSA
1013:
The updated second iteration of the engine changed the CVVT controls from hydraulic to electronic along with a smaller turbo for improved responsiveness and fuel economy, it was used in the seventh generation Sonata and fourth generation Optima, compression ratio is 10.0:1 and the engine develops
1268:
Owners started suing after the automaker refused to pay the thousands of dollars to repair or replace the engines, with one lawsuit from 2015 alleging a dealer wanted $ 4,500 to do the work. Kia was also served papers over a class-action lawsuit in 2016 filed by owners of vehicles equipped with
1136:
The 2.4L Theta II Hybrid engine compression ratio is 13.0:1, it features multi-point fuel injection and the gasoline engine produce 171 PS (126 kW; 169 hp) at 6,000 rpm and 21.6 kg⋅m (156 lb⋅ft; 212 N⋅m) of torque at 4,500 rpm, the electric motor is rated 41 PS
1256:
In
September 2015, Hyundai recalled about 470,000 model year 2011-2012 Sonatas equipped with 2-liter and 2.4-liter Theta II engines. At the time, Hyundai told NHTSA that manufacturing problems left metallic debris around the engine crankshaft, causing problems with oil flow. The pieces of metal
1143:
Newer revision of this engine combines a 159 PS (117 kW; 157 hp) at 5,500 rpm and 21 kg⋅m (152 lb⋅ft; 206 N⋅m) of torque at 4,500 rpm engine plus a 51 PS (38 kW; 50 hp) between 1,770 and 2,000 rpm with 20.9 kg⋅m (151 lb⋅ft; 205 N⋅m) of
1264:
Also in April 2017, Hyundai and Kia Motors planned to recall 170,000 vehicles in South Korea from five models, including their
Grandeur and Sonata, after acknowledging a defect in the Theta 2 engines used in them. Eventually, 520,000 vehicles were recalled in South Korea.
1272:
In Canada in 2019 Hyundai announced a recall for most vehicles using the affected engines, however a class action lawsuit was filed in 2018 as a result of failures of this engine used in
Canadian Forte models and lack of manufacturer support against Kia Canada Inc.
596:
The 1.8L version is an inline 4-cylinder engine that carries a 10.5:1 compression ratio; the engine makes 133–138 PS (98–101 kW; 131–136 hp) at 6,000–6,200 rpm and 16.9–17.5 kg⋅m (122–127 lb⋅ft; 166–172 N⋅m) of torque at 4,250 rpm.
848:
The 2.4L Theta II FR MPi engine (G4KG) is for RWD applications and has a 10.5:1 compression ratio, and it produces 175 PS (129 kW; 173 hp) at 6,000 rpm and 23.2 kg⋅m (168 lb⋅ft; 228 N⋅m) of torque at 4,200 rpm.
1093:
For the RWD based applications, compression ratio is 10.0:1 and the engine develops 252–255 PS (185–188 kW; 249–252 hp) at 6,200 rpm and 36 kg⋅m (260 lb⋅ft; 353 N⋅m) of torque between 1,400 rpm and 4,000 rpm.
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The 2.4L Theta II MPi engine (G4KE) has a 10.5:1 compression ratio, and it produces 178–179 PS (131–132 kW; 176–177 hp) at 6,000 rpm and 23.2–23.5 kg⋅m (168–170 lb⋅ft; 228–230 N⋅m) of torque at 4,000 rpm.
1257:
interfere with the oil flow through the connecting rod bearings and damage the connecting rods. The automaker blamed the problem on a mechanical "deburring" process used to remove metallic machining debris from the crankshaft.
1018:
between 1,450 rpm and 4,700 rpm, for the Kona N and
Elantra N the power output is 280 PS (206 kW; 276 hp) at 6,000 rpm and 40 kg⋅m (289 lb⋅ft; 392 N⋅m) of torque between 2,100 rpm and 4,700 rpm.
1097:
A detuned version that develops 197 PS (145 kW; 194 hp) between 4,500 and 6,200 rpm and 36 kg⋅m (260 lb⋅ft; 353 N⋅m) of torque between 1,450 rpm and 3,500 rpm is used for the
European market.
712:
The 2.0L Theta II MPi engine has a 10.5:1 compression ratio, and it produces 165 PS (121 kW; 163 hp) at 6,200 rpm and 20.1–20.2 kg⋅m (145–146 lb⋅ft; 197–198 N⋅m) of torque at 4,500–4,600 rpm.
960:, however most of the rotating assembly is different, with different rod lengths, bearing sizes, and piston compression heights. Additionally the 4B11T is a semi-closed deck block, where the Theta is an open deck block.
963:
For RWD based applications, the 2.0L turbo MPI in the 2009–2012 Genesis Coupe, compression ratio is 9.5:1 and it produces 210–213 PS (154–157 kW; 207–210 hp) at 6,000 rpm and on 91 RON/87 octane
1277:
include the 2011-2013 Hyundai Sonata Hybrid, 2012 Hyundai Santa Fe, 2012-2013 Kia
Sorento, 2011-2013 Kia Optima Hybrid, 2012-2013 Kia Forte and Forte Koup, and the 2012 Kia Sportage 2.4l.
980:) gasoline, and 275–279 PS (202–205 kW; 271–275 hp) at 6,000 rpm and 38 kg⋅m (275 lb⋅ft; 373 N⋅m) of torque between 2,000 and 4,500 rpm on 98 RON/93 octane.
1144:
torque between 0 and 1,770 rpm electric motor for a total system power of 200 PS (147 kW; 197 hp) at 5,500 rpm and 27 kg⋅m (195 lb⋅ft; 265 N⋅m) of torque.
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Theta engines. NHTSA says it took action to "investigate both the timeliness and scope of Hyundai's Theta II engine recalls, and Hyundai's compliance with reporting requirements."
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built-in. In the lower-end, the block is reinforced by a ladder frame. Other notable features include fracture-split sinter-forged connecting rods manufactured by Sinteron and a
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program at the 2013 SEMA Show in Las Vegas, which initially included a 2.0-liter, turbocharged four-cylinder engine. The crate engine program began in December 2013.
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a timely manner with regards to the recalls of nearly 1.7 million vehicles with Theta engines, which were prone to an abnormal amount of noise and seizing.
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245–248 PS (180–182 kW; 242–245 hp) at 6,000 rpm and 36 kg⋅m (260 lb⋅ft; 353 N⋅m) of torque between 1,350 rpm and 4,000 rpm.
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Total system output with the electric motor is rated 212 PS (156 kW; 209 hp) and 27 kg⋅m (195 lb⋅ft; 265 N⋅m) of torque.
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560:
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1137:(30 kW; 40 hp) between 1,400 and 6,000 rpm with 20.9 kg⋅m (151 lb⋅ft; 205 N⋅m) of torque between 0 and 1,400 rpm.
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and the 32-bit PCM (Powertrain Control Module) calculates the amount of intake air by utilizing a contamination-proof hot-film type MAF (
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1550:"Automobile Protection Association | Two major recalls and a warranty extension from Hyundai and Kia Canada"
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Morse TEC supplies the complete timing system which uses the company's proprietary silent timing chains.
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The aluminum alloy engine block, which is formed using a high-pressure die-cast method, has a unique
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968:) gasoline, and 226 PS (166 kW; 223 hp) at 6,000 rpm on 98 RON/93 octane (
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with 18.7–19.3 kg⋅m (135–140 lb⋅ft; 183–189 N⋅m) of torque at 4,250 rpm.
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1471:"Whistleblower gets more than $ 24M for reporting Hyundai and Kia over engine fires"
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1496:"Hyundai and Kia announce belated recall of 170,000 vehicles with Theta 2 engines"
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The turbo used is a Mitsubishi TD04 model, the block used is very similar to the
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injection and makes 136–144 PS (100–106 kW; 134–142 hp) at 6,000
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The first version of the Theta Engine had three variants, 1.8L, 2.0L and 2.4L.
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injection and makes 159 PS (117 kW; 157 hp) at 5,500
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The engine features hollow stainless-steel dual overhead camshafts (
1574:"Automobile Protection Association and Gaudreau v. Kia Canada Inc"
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The Theta II GDi was announced in November 2009 starting with the
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Hyundai launches crate engine program with 2.0L four and 3.8L V6
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1331:"Hyundai's All-New Sonata Launched in Korea - Hyundai Newsroom"
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On 2013-11-05, Hyundai announced the creation of a new factory
559:-supplied cassette-type balance shaft module with a two-stage
15:
493:(HMMA) built a Theta II engine shop on the grounds of their
1660:
Hyundai Motor Korea -- V6 3.0 Lambda Engine for 5G Grandeur
485:
sedan (codenamed NF), which was unveiled in August 2004 in
1510:"Hyundai, Kia take huge third-quarter hits due to Theta 2"
1524:"Hyundai and Kia Theta II Engine Recalls Investigated"
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46:. Unsourced material may be challenged and removed.
1005:2011 Hyundai Sonata Limited 2.0T, turbo GDI engine
544:and shimless bucket tappets in the cylinder head.
1223:The 2.4 L (2,359 cc) engine features
1176:The 2.0 L (1,998 cc) engine features
696:2.0L Theta II engine (G4KD) in a Kia Sportage
8:
704:and comes in two sizes, the 2.0L and 2.4L.
653:219–226 N⋅m) of torque at 4,250 rpm.
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976:2,000 and 4,500 rpm on 91 RON/87 octane (
106:Learn how and when to remove this message
118:Reciprocating internal combustion engine
1617:"Part 573 Safety Recall Report 20V-750"
1588:"Part 573 Safety Recall Report 20V-746"
1442:"Part 573 Safety Recall Report 17V-224"
1413:"Part 573 Safety Recall Report 17V-226"
1384:"Part 573 Safety Recall Report 15V-568"
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1368:: CS1 maint: archived copy as title (
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7:
874:, improvements include switching to
200:122 cu in (1,998 cc)
44:adding citations to reliable sources
491:Hyundai Motor Manufacturing Alabama
232:77.4 mm (3.05 in) (1.8L)
202:144 cu in (2,359 cc)
550:Continuously variable valve timing
14:
1307:– Mitsubishi's GEMA built engines
552:(CVVT) works on the intake side.
762:Hyundai Theta II 2.4L MPI (G4KE)
483:fourth-generation Hyundai Sonata
431:146 kg (322 lb) (2.4L)
234:86 mm (3.4 in) (2.0L)
20:
1301:– Chrysler's GEMA built engines
540:) with powder-metal cam lobes,
288:9.5:1–10.0:1 (2.0 L T-GDi)
236:97 mm (3.8 in) (2.4L)
222:88 mm (3.5 in) (2.4L)
31:needs additional citations for
1:
1154:Hyundai Grandeur/Azera Hybrid
958:Mitsubishi Lancer Evolution X
542:pent-roof combustion chambers
473:engine family. The third all-
515:was a joint venture between
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577:) software is EMS-II from
504:
1686:Gasoline engines by model
1089:2.0L FR Turbo GDI (G4KL)
948:2.0L FR Turbo MPI (G4KF)
133:
723:Hyundai Tucson/ix35 (LM)
575:engine management system
1311:List of Hyundai engines
286:11.3:1 (2.4 L GDi)
284:10.3:1 (2.4 L MPi)
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997:2.0L Turbo GDI (G4KH)
888:Hyundai Grandeur/Azera
763:
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513:Global Engine Alliance
507:Global Engine Alliance
501:Global Engine Alliance
455:Smartstream G2.5/G2.5T
55:"Hyundai Theta engine"
1681:Straight-four engines
1305:Mitsubishi 4B1 engine
1299:Chrysler World engine
1160:Kia Cadenza/K7 Hybrid
1004:
990:Hyundai Genesis Coupe
872:6th generation Sonata
783:Hyundai Grandeur (TG)
761:
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663:Hyundai Grandeur (TG)
635:Kia Carens/Rondo (UN)
479:Hyundai Motor Company
154:Hyundai Motor Company
1393:. September 10, 2015
497:automobile factory.
40:improve this article
1010:rpm and 4,500 rpm.
906:Hyundai Tucson (TL)
859:Hyundai Starex (TQ)
844:2.4L FR MPI (G4KG)
801:Hyundai Tucson/ix35
669:Hyundai Sonata (NF)
629:Hyundai Sonata (NF)
495:Montgomery, Alabama
282:10.5:1 (2.0 L)
1626:. December 2, 2020
1597:. December 1, 2020
1512:. 19 October 2020.
1058:Hyundai Veloster N
1007:
777:Hyundai Azera (HG)
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1529:CarComplaints.com
1028:Hyundai Elantra N
747:Kia Sportage (SL)
527:Technical details
521:Mitsubishi Motors
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1076:Kia Sorento (UM)
1046:Hyundai Santa Fe
956:engine found in
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894:Hyundai Santa Fe
866:2.4L GDI (G4KJ)
789:Hyundai Santa Fe
754:2.4L MPI (G4KE)
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583:mass air flow
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573:Theta's EMS (
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394:16.9–40
393:
391:
390:Torque output
387:
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376:(98–206
375:
372:133–280
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344:Pressure feed
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208:Cylinder bore
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174:Configuration
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96:December 2018
88:
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57: –
56:
52:
51:Find sources:
45:
41:
35:
34:
29:This article
27:
23:
18:
17:
1640:
1630:December 10,
1628:. Retrieved
1623:
1611:
1601:December 10,
1599:. Retrieved
1594:
1582:
1568:
1557:. Retrieved
1553:
1544:
1533:. Retrieved
1527:
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1504:
1490:
1478:. Retrieved
1474:
1465:
1453:. Retrieved
1448:
1436:
1424:. Retrieved
1419:
1407:
1395:. Retrieved
1390:
1378:
1353:. Retrieved
1349:the original
1339:
1325:
1287:crate engine
1284:
1275:
1271:
1267:
1263:
1259:
1255:
1251:
1235:Applications
1222:
1219:2.4L (L4KB)
1188:Applications
1175:
1172:2.0L (L4KA)
1148:Applications
1142:
1139:
1135:
1132:2.4L (G4KK)
1127:Theta II HEV
1102:Applications
1096:
1092:
1082:Kia Sportage
1022:Applications
1016:
1012:
1008:
984:Applications
974:
962:
951:
930:Kia Sportage
882:Applications
869:
853:Applications
847:
831:Kia Sportage
771:Applications
765:
717:Applications
711:
699:
657:Applications
651:
648:2.4L (G4KC)
623:Applications
617:
614:2.0L (G4KA)
601:Applications
595:
592:1.8L (G4KB)
587:
572:
554:
535:
512:
510:
463:
461:
368:Power output
320:EMS-II from
194:(1,798
186:Displacement
163:2004–present
149:Manufacturer
125:
102:
93:
83:
76:
69:
62:
50:
38:Please help
33:verification
30:
1243:(2008–2021)
1214:(2010–2011)
1208:(2005–2010)
1202:(2006–2013)
1196:(2004–2011)
1162:(2013–2021)
1156:(2013–2022)
1122:(2017–2023)
1120:Kia Stinger
1116:(2017–2020)
1108:Genesis G70
1084:(2011–2021)
1078:(2015–2020)
1072:(2011–2019)
1066:(2016–2021)
1060:(2018–2022)
1054:(2009–2019)
1048:(2012–2020)
1042:(2021–2023)
992:(2009–2014)
938:(2014–2020)
932:(2010–2021)
926:(2010–2019)
920:(2016–2021)
914:(2011–2019)
912:Kia Cadenza
908:(2015–2020)
902:(2009–2019)
896:(2012–2020)
890:(2011–2019)
861:(2007–2021)
839:(2009–2020)
837:Kia Sorento
833:(2011–2021)
827:(2008–2013)
821:(2008–2019)
815:(2008–2012)
809:(2009–2019)
807:Kia Cadenza
803:(2010–2020)
797:(2007–2019)
791:(2010–2020)
785:(2008–2011)
779:(2013–2016)
749:(2010–2013)
743:(2008–2012)
737:(2008–2012)
731:(2007–2014)
725:(2009–2015)
683:(2007–2008)
677:(2005–2008)
671:(2004–2007)
665:(2005–2008)
643:(2005–2007)
637:(2006–2013)
631:(2004–2007)
609:(2005–2008)
579:Siemens VDO
487:South Korea
441:Predecessor
356:Watercooled
322:Siemens VDO
179:Inline-four
1670:Categories
1559:2019-12-11
1554:www.apa.ca
1535:2018-07-17
1355:2014-02-06
1317:References
1070:Kia Optima
924:Kia Optima
819:Kia Optima
585:) sensor.
546:BorgWarner
477:engine of
471:automobile
436:Chronology
425:(295
417:Dry weight
411:Dimensions
339:Oil system
316:Management
293:Combustion
266:Valvetrain
216:(3.4
192:cu in
160:Production
66:newspapers
1624:NHTSA.gov
1595:NHTSA.gov
1449:NHTSA.gov
1420:NHTSA.gov
1391:NHTSA.gov
1206:Kia Lotze
1167:Theta LPG
825:Kia Rondo
681:Kia Rondo
557:Metaldyne
451:Successor
421:134
328:Fuel type
260:Aluminium
248:Aluminium
190:110
1455:March 5,
1426:March 5,
1397:March 5,
1364:cite web
1293:See also
688:Theta II
561:oil pump
517:Chrysler
475:aluminum
429:) (2.0L)
257:material
244:material
212:86
143:Overview
126:θ engine
1475:npr.org
1064:Kia KX7
918:Kia KX7
80:scholar
1480:4 July
1212:Kia K5
404:lbf⋅ft
362:Output
301:system
168:Layout
82:
75:
68:
61:
53:
1620:(PDF)
1591:(PDF)
1445:(PDF)
1416:(PDF)
1387:(PDF)
954:4B11T
532:Theta
87:JSTOR
73:books
1632:2020
1603:2020
1482:2024
1457:2020
1428:2020
1399:2020
1370:link
538:DOHC
511:The
462:The
445:Beta
396:kg⋅m
299:Fuel
271:DOHC
59:news
1229:rpm
1225:LPI
1182:rpm
1178:LPI
978:AKI
970:AKI
966:AKI
876:GDI
702:VIS
400:N⋅m
309:GDI
305:MPI
42:by
1672::
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1366:}}
1362:{{
570:.
519:,
489:.
427:lb
423:kg
382:hp
378:kW
374:PS
218:in
214:mm
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196:cc
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94:(
84:·
77:·
70:·
63:·
36:.
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