Longton Service Centre: Daewoo Fuel Pump Fitting

It is possible for current ECU technology to monitor oil pressure and detect a sudden drop or no oil pressure and switch off the fuel pump to prevent the engine seizing, hence it may not always be a problem with the Daewoo fuel pump

Fuel delivery into the Daewoo fuel injectors is normally controlled by an electronic control unit (ECU) with inbuilt safety features to switch off the fuel pump in the event of an accident or fault

Daewoo Fuel Pump Faulty or Stopped Working?
Get an estimate to fit a replacement Daewoo Fuel pump using the simple enquiry form

Daewoo fuel injection engines require fuel to be pumped under pressure from the fuel tank to the engine fuel injection system

With Electronic Fuel Injection Systems (EFI); the fuel pump is often located within the fuel tank so that the tank can be pressurised to pump fuel to the engine rather than require a vacuum pump at the engine that could pull in air and cause erratic engine running

Fitting the fuel pump within the Daewoo fuel tank below the fuel level allows the liquid fuel to actually keep the pump cool and reduces the risk of the fuel igniting accidentally

If you've been involved in an accident and your Daewoo won't start then an inertia switch may have tripped the power supply to the fuel pump and need resetting

Metallic particles in the fuel filter could be caused by a faulty or worn out fuel pump and may eventually block the fuel injectors and require a very expensive repair

Daewoo Services Longton - Daewoo Filter Replacement & Fresh Engine Oil

Garage Longton - Daewoo Routine Maintenance - Engine Oil Change Longton

Daewoo Suspension System
Daewoo replacement shock absorbers & springs fitted for front or rear suspension problems, broken springs. Custom suspension systems installed, lowering springs fitted

Daewoo EGR Valves
Replacement Daewoo EGR valves - ensure the exhaust gas recirculation system is functioning correctly on your Daewoo - The EGR valve helps your Daewoo burn fuel more efficiently by recirculating a portion the exhaust gas through combustion chamber and helps reduce Daewoo engine emissions; a broke or sticking EGR valve can be the cause of an MOT failure due to excessive emissions

Daewoo Fuel Pumps
Often replaced at a milestone service if the fuel pump is operated by the Timing belt

Daewoo Alternators
Replacement Daewoo alternators fitted

Daewoo Autoelectrics
Daewoo electrical faults diagnosed - OBD fault finding - Daewoo engine fault codes checked & service lights reset - ECU problems, key coding and CANBUS systems checked

Daewoo Starter Motors
Replacement Daewoo Starter motors installed

Daewoo Engines
Daewoo Engine repairs, cylinder head skimming, valves & pistons

Daewoo Paint Resprays
Paint resprays for minor scratch damage to the Daewoo paint surface or coating; Custom paintwork to make your Daewoo different using metallic paints, pearlescent pigments or company colours.

Daewoo Brakes
Routine Daewoo servicing, replacement Daewoo brake pads & discs fitted, Daewoo hydraulic pipework and joints inspected, repaired or replaced for a complete braking system overhaul

Daewoo Oil Change & Filters Replaced
Daewoo Air filters, pollen filters; oil filter & fuel filter replaced, engine oil changed - Multigrade or Synthetic oils

Daewoo Performance Spares
OEM Daewoo parts fitted or replaced with alternative performance parts

Daewoo Cooling System
Replacement Daewoo radiators fitted, cooling system pipework inspected for leaks and cooling fluid replaced to keep your Daewoo engine at its optimal operating temperature

Daewoo Timing Belt - Daewoo Cambelt
Daewoo Timing Belts replaced as part of a planned Daewoo service or if the Timing Belt on your Daewoo has snapped then a full engine inspection for valve & piston damage

Daewoo Clutches
Daewoo clutch repairs Longton - Checking for leaks and repairing-replacing the clutch master-slave cylinder and fitting a new Daewoo Clutch kit

Daewoo Exhausts
Daewoo Engine manifolds, Front box, Back box, catalytic converter and exhaust pipes for Daewoo Exhausts fitted & welded

Daewoo Electrical Components
Daewoo electrical faults repaired using Daewoo OEM components - Daewoo sensors checked e.g. Lambda sensors, air flow meters etc

Daewoo Gearboxes
Daewoo Manual & Automatic gearbox servicing & repair - Fitting a new or reconditioned Daewoo gearbox

Daewoo Tyres
Steel wheels, alloy wheels and tyres repaired and replaced with cheap tyres, run-flat tyres or low profile & performance tyres depending upon your budget and driving requirements. Part-Worn tyres may be available for your Daewoo model

Daewoo Body Panels
Replacement Daewoo panels fitted & sprayed to match - Light Daewoo Panel damage repairs

Longton Brake Servicing - New Disc Brakes & Pads

Modern Daewoo braking systems use hydraulic links to transfer stopping power

The hydraulic brake fluid is a non-compressible liquid so braking pressure is transferred via the brake pipes to the wheels and operates a slave cylinder piston that forces the brake pads against a brake drum or brake disc

The brake pedal controls the Master Cylinder (a fluid filled hydraulic piston) that transfers stopping power to the brakes

Braking increases hydraulic brake fluid pressure

The enforced contact between the brake pads and brake drum or brake disc increases friction to slow down or stop the vehicle

Daewoo brakes can last for thousand of miles depending on use and regular service

Daewoo Disc Brakes and Drum Brake Systems

In hydraulic braking systems, braking pressure operates a slave cylinder

Hydraulic braking pressure forces a brake calliper to press the brake pads against the disc to apply the necessary stopping force

Daewoo disc brakes have a pair of high friction brake pads mounted either side of a brake disc

Drum Brakes, if fitted, are usually found on Daewoo rear wheels

Drum Brakes are an older system than Daewoo disc brakes and use two half moon shaped brake shoes that move outwards during use to apply a frictional stopping force against the inside of a brake drum

Daewoo Brake Servicing - Daewoo Brake Discs and Pads

Daewoo brake discs will wear and need replacing eventually and should be inspected for pitting

If the Daewoo brake discs warp then they should be replaced immediately

if the Daewoo brakes overheat and are allowed to cool with pressure still applied for m the brake pads/shoes then it is possible for the disc to warp.

Daewoo Brakes will safely function correctly without the need for replacement for many thousands of miles

The brake pads on your Daewoo should wear first

Daewoo Brake Servicing & Inspection Longton

Wheel cylinder condition

Hand brake linkage condition

Adjust handbrake

Correct brake pad movement and level of wear

Replace Brake Fluid if necessary

Brake pipe Condition

Lubricate Hand Brake Linkages

ABS warning light operation

Clean and remove brake dust and loose corrosion and dirt from drums

Auxiliary handbrake shoes where appropriate

Handbrake function and travel

General brake disc condition

Top Up Brake and Clutch Fluid Levels or

Hydraulic brake pipe fittings and joints for corrosion and leaking

Brake calliper operation

And carry out the following maintenance of your Daewoo braking system:-

Brake drum condition

Daewoo Steering System

Common symptoms of Daewoo steering alignment problems include:-
Vehicle Drift - Your Daewoo tends to pull left or right when travelling in a straight line
Modern Power steering and Drive by Wire Systems do not have the same mechanical linkages between the steering column and drive wheels making it difficult to 'feel' how the steering is performing.

One of the first signs of a potential problem with your Daewoo steering system is uneven tyre wear

The tyres will need to be replaced much sooner than necessary until the steering rack is adjusted to bring your wheels into correct alignment

The tyre tread is rapidly removed from the inner or outer tyre edge of your front tyres

Daewoo Steering, Wheels & Tyres:-

Correct Tyre Pressure - inc Spare

Tyre Condition - inc Spare

Wheel Bearings for wear - play or noise

Correct wheel nut torque to manufacturer's recommendations

Steering Linkages for wear and corrosion

Correct wheel balance, including spare

Power Steering Reservoir Levels and Top Up

Steering Condition

Daewoo Tyre wear and wheel alignment

Steering Rack Gaiter condition

Daewoo Services Braking System Servicing and Repair

Modern braking systems use hydraulic links to transfer stopping power.

Brakes can last for thousand of miles depending on use and regular service.

The brake pedal is attached the Master Cylinder; a fluid filled hydraulic piston.

The enforced contact between the brake pads and brake drum or brake disc increases friction to slow down or stop the vehicle.

The hydraulic brake fluid is a non-compressible liquid so braking pressure is transferred via the brake pipes to the wheels and operates a slave cylinder piston that forces the brake pads against a brake drum or brake disc.

Braking increases hydraulic brake fluid pressure.

Replacement Daewoo Timing Belt or Cambelt

If the timing belt snaps it will most probably cause serious engine damage. The camshaft stops turning with some of the valves left in the open position. In a Free Running Engine there is enough clearance between a fully open valve and the piston head to avoid serious damage. In an Interference Engine there is no clearance and the engine relies upon accurate timing to keep the valves and piston head separated. With a broken timing belt; the inertia helps the crankshaft to rotate freely forcing the pistons to strike the open valves resulting in damaged valves, pistons, and possibly even damage to the cylinder head

Since Daewoo Timing Belts are hidden inside the engine they tend to be forgotten when purchasing a used Daewoo

Often it is prudent to replace a combination of items associated with the timing system. Most of the needed Daewoo parts can be obtained as timing kits containing the appropriate timing components; such as: Daewoo timing belt
timing belt tensioners
timing belt tensioner idler roller
front lower crank shaft seal
water pump gasket

Generally Daewoo belts should be replaced every 60,000 miles or less. So, if you have just bought a secondhand Daewoo that has 40,000 to 80,000 miles then it is important to know if the timing belt has been replaced or needs replacing. Check the Daewoo Owner's manual for your model for the recommended changing frequency

The toothed belt connecting the engine crankshaft to the camshaft is known as the Cambelt or Timing belt

The Timing Belt synchronizes the camshaft to the crankshaft position ensuring the valves open and close at the correct time in relation to the piston. Some vehicles use a cam chain in place of the belt or a timing gear system instead

Timing belts must be replaced at a specified manufacturer's interval. The timing belt should also be inspected regularly and replaced immediately if there is any evidence of cracking or fraying cuts or excessive wear

High compression diesel engines are normally interference engines

Daewoo Clutch Operation

The Daewoo clutch disc is, not surprisingly, a disc with each side covered in a high friction material. It is designed to engage with the high-friction surfaces of the pressure plate and flywheel. It is also designed to transmit power to theDaewoo transmission system

Daewoo Clutch failure often occurs when one or more of the high friction surface materials wears out on the disc. Even when the pressure plate is engaged and a clamping force is applied, there is no longer sufficient friction to transmit power without the clutch slipping. Normally the Daewoo clutch disc and pressure plate are replaced. Replacing the Daewoo Clutch is a major operation and it is sometimes advisable to replace a number of items, often supplied as a Daewoo Clutch kit:-
Daewoo clutch disc
pressure plate
release bearing
pilot bearing - bushing (when required)
internal Daewoo clutch slave cylinder

When the clutch is dis-engaged the clamping force is removed so the clutch disc spins with the flywheel and no power is transmitted

Engaging the clutch forces the clutch against the flywheel transmitting power from the crankshaft to the transmission shaft

Disengaging the clutch acts on heavy-duty release springs to isolate the pressure plate so that the disc is no longer pressed against the flywheel

The centre of the clutch disc has a spline pattern that matches splines on the power input shaft of the transmission system

The pressure plate comprises heavy-duty release springs, a metal pressure ring acting as a high friction surface to interact with the clutch disc, a thrust ring (or thrust fingers) for the release bearing, and release levers

Daewoo Fuel Injectors - Fuel Injection

Daewoo Fuel Injection
Fuel injection systems mix fuel with just the right amount of air for optimal combustion & energy release in an internal combustion engine

Daewoo Engine Mapping
The Daewoo ECU controlling engine performance is pre-programmed with software containing embedded data on engine performance for different combinations of engine speed and acceleration

EFI - Electronic Fuel Injection
The Daewoo fuel injection system is controlled by a mini-computer or Electronic Control Unit (ECU) that assimilates data from a series of temperature sensors and oxygen or lambda sensors providing feedback to help optimise fuel efficiency and power under a variety of conditions

Daewoo Re-Mapping Longton
The Daewoo ECU can be replaced with a programmable ECU or re-mapped to electronically alter the engine performance characteristics

LPG Petrol or Diesel Metering
Fuel Injection systems have replaced carburetors for the accurate mixing and delivering of petrol, lpg or diesel fuel in modern Daewoo vehicles

Daewoo Oil Change Frequency

Anti Oxidants
Preventing internal engine oxidation in your Daewoo motor is the job of sacrificial anti-oxidants present in the lubricating oil; Anti oxidants are sacrificed to protect your engine and will eventually be depleted making it necessary to change your oil regularly

Oil Composition
Engine Lubricating Oil is composed of hundreds of chemicals; some can interact chemically, polymerise, oxidise and break down with the extreme conditions of temperature & shear forces pulling the oil molecules apart in your Daewoo engine thus, changing the lubrication properties.

Oil Change Masterclass
Keep a small amount of the engine oil used in your next oil change in a sealed container; then when you check your oil level with the dipstick you can compare the lubricity or lubricating properties of the oil against your fresh oil:- If the oil on the dipstick seems thin compared to your reference oil sample; it may be time to get an oil change to keep your Daewoo running smoothly

Oil & Filter Change
A new Daewoo oil filter and oil change shouldn't need a specialist Daewoo engineer and is minimal compared to the cost of an Engine Rebuild; with regular maintenance and routine servicing working out cheaper than disaster recover when your Daewoo engine fails

Moisture Scavengers - Detergents - Acidity Regulators
Moisture scavengers, detergents and acidity regulators prevent all kinds of contaminants degrading and abrading the internal moving surfaces of your Daewoo engine minimising the effects that water, particles, and fuel combustion residus can have on Daewoo performance
Once they have absorbed the maximum amount of water and other contaminants; the risk of corrosion and failure in your in your Daewoo engine increases

Oil Change Frequency
The mechanics rule of thumb with traditional multigrade engine oils used to be "change the oil every 3000 miles" but many vehicle manufacturers indicate 5000 to 7000 miles. Initially, follow the Daewoo recommended oil change guidelines to ensure you validate your warranty.

Synthetic Oil Change - Longton
Modern synthetic oils can last longer than old petroleum based multigrades because they are more inert with a laboratory designed molecular structure and fewer natural catalytic impurities that increase oil breakdown compared to the cheaper engine oils

Daewoo Replacement Exhausts Longton

Corroded exhaust pipes allow fumes and noise to escape; increasing the risk of poisonous carbon monoxide entering the cabin and significantly increasing noise making detection an easy task

The exhaust pipework helps muffle and deaden the noise from the fuel combustion process

The Daewoo exhaust system allows poisonous gases from the fuel combustionto vent into the atmoshpere away from the driver and cabin

Explosions from the instantaneous ignition of the compressed fuel and air igniting in the combustion chamber creat a lot of noise that needs to be silenced in the urban environment