Engine is losing oil and smoking?

Tiny
SAMREALS
  • MEMBER
  • 2001 TOYOTA SIENNA
  • 2.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 200 MILES
The engine is losing oil and smoking, I consulted my local mechanic about the problem and said we should rebuild, but I have problems with getting original parts here in Nigeria. How do you help or any alternative to this?
Monday, July 18th, 2022 AT 1:49 AM

2 Replies

Tiny
BORIS K
  • MECHANIC
  • 762 POSTS
Hello,

Apart from an engine rebuild your other option would be to replace the engine with a Japanese import engine. I found a website listing several importers based in Lagos

https://www.japanesecartrade.com/japan-engines-importers/nigeria.html

Hope this helps.

Cheers, Boris
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Monday, July 18th, 2022 AT 2:54 AM
Tiny
BORIS K
  • MECHANIC
  • 762 POSTS
Hello,

How to remove the engine.

Release fuel pressure. Remove hood. Remove cowl top panel assembly. Remove heater air duct. Remove battery and battery tray. Drain cooling system and engine oil. Remove the air cleaner cap and air cleaner case. Remove cruise control actuator and bracket.
Remove radiator and coolant reservoir tank. Disconnect A/T oil cooler hose from pipe, remove bolt, and disconnect cooler pipe from frame. Disconnect igniter connector and noise filter connector from cowl panel. Disconnect VSV connector for vapor pressure sensor and disconnect vapor pressure sensor connector and clamp. Disconnect generator and starter wiring. Remove two ground strap connectors from the right fender apron and one ground strap connector from left fender apron.
Disconnect brake booster vacuum hose from air intake chamber. Disconnect coolant reservoir hose from water outlet. Disconnect heater hoses. Remove fuel inlet hose from fuel filter. Remove EVAP hose from pipe on emission control valve set and both vacuum hoses from ACIS vacuum tank.
From inside passenger compartment, remove ECM. Disconnect grommet from cowl panel and push wiring harness through to engine compartment.
Disconnect A/C compressor connector. Remove drive belt. Remove four bolts, nut and drive belt adjusting bar bracket. Remove compressor from engine. Disconnect A/T shift control cable from transaxle.
Disconnect HO2S connector. Remove two bolts and exhaust pipe stay. Remove two bolts and the front exhaust pipe bracket. Remove two bolts and nuts and separate the front exhaust pipe from tailpipe. Remove four nuts and separate the front exhaust pipe from the exhaust manifold. Remove the front exhaust pipe and three gaskets. Discard all mounting nuts, bolts and gaskets.
Remove fender apron seals from their mounting points. Remove axle shafts. See FWD axle shafts article in drive axles. Disconnect stabilizer bar links. Disconnect steering column intermediate shaft assembly. See appropriate steering columns article in steering.
Disconnect both power steering hoses from oil reservoir. Disconnect fender apron seals by turning over front side of both fender liners.
Attach approved engine sling to engine hangers only. Remove three bolts and right engine mounting stay. Remove three bolts and engine moving control rod and No. 2 right engine mounting bracket. Remove six bolts, four nuts and four engine frame-to-body mounting braces. Carefully lower engine, transaxle, and front suspension frame member from vehicle.
Disconnect power steering vane pump from engine. Remove 4 transaxle-to-left engine mount bolts, 4 engine absorber bolts, 3 front frame-to-engine insulator bolts, four rear engine-to-front frame insulator nuts (two are hidden under rubber plugs) and remove front suspension frame member.
Remove front and rear mounting insulators from engine. Disconnect throttle control cable. Remove starter. Disconnect wiring from transaxle. Remove torque converter cover. Turn crankshaft timing sprocket to access six bolts through drive plate cover. Remove transaxle from engine. Remove drive plate.

How to install engine:

To install, reverse removal procedure. Tighten all fasteners to specification. When installing transaxle to engine, use thread lock sealant on ends of drive plate mounting bolts. When installing exhaust pipes, install new gaskets and mounting nuts. Refill fluids. Start engine and check for leaks. Road test vehicle.

Hope this helps.

Cheers, Boris
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Tuesday, July 19th, 2022 AT 1:10 AM

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