Thread: ADVICE 1999 Discovery Series 2 V8 3.9

It will be a 4.0 litre if a D2, the V8s are common to have head gasket problems and are easily overheated. They are unforgiving if they have got hot.
get it pressure tested before you waste money on parts.

Make yourself known to Pedro the Swift, he's all but your next door neighbor.
^^^^ Roverlord Off Road Spares ^^^^ is the best place for parts, PM Mario/Heather.
Flush the unknown coolant well before refilling.

compression test first.

Originally Posted by Roverlord off road spares

It will be a 4.0 litre if a D2, the V8s are common to have head gasket problems and are easily overheated. They are unforgiving if they have got hot.
get it pressure tested before you waste money on parts.

Cheers : ) rego states series 2 but yes all the literature I've read points to it being a series 1 , March 1999 build date, was the year of change over I think. Ok will do a compression test but having said that I am determined to get this Disco running as it should and happy to spend some money on her, I bought it cheap enough and was prepared to spend on it. TIME and MONEY : ) : ) : ) no doubt.

most obvious difference between disco 1 & 2 from a distance is the tail lights, up high on the 2, lower down on the 1.
Mine is also 1999 build, but a disco 1.
3.9V8 badge on engine, the 2 would have 4.0 Badge.

As for the windows; there is a rear window relay that is common to fall out.

and I note that only the rear windows have a relay (R152) in circuit. Have you tried replacing that? It's in the passenger compartment fusebox

worth checking.

Edit; window relay is for D2, D1 has different thing window ECU. see here;
Disco 1 rear windows not working

Overheated, check hoses etc. also look for signs of coolant splash around front of engine. I once had a top radiator hose split on me, luckily, (or not) it was spraying coolant directly onto the distributer (D1), it started running on only a few cylinders but that was an indication something was seriously wrong. Pulled over way before the temp would have risen. If this has happened, distributer may have got a hosing and could be why not starting also.
Note; D2 has different type distributor at rear of engine.

Other easy difference to spot is the door handles, recessed on the D1, sticking out on the D2.
If the maintenance has been a bit slack, the first thing to suffer is generally the camshaft. Very small oil galleries, easily choked by dirty oil.

Obvious thing is the D2 has a long bootie, D1 has a short bootie.

3.9 engine has 3.9 written on the plenum box, 4.0 being a Thor engine has no engine size marked on it and has a "bannana" style plenum.

Vin on late D1 should be WA the D2 start at vin. XA
Pic of D2 rear
Disco 2 01 k_1.jpg

Pic D1 rear
D1.JPG

D2 NO DISSY
D2 LARGE REAR PILLAR STOP LIGHTS
D2 ALPINE AND REAR SIDE CARGO WINDOWS ARE GLUDED IN.
D2 FRONT FRONT DICTORS ARE SCREWED IN
HVAC IS DIGITAL DISPLAY