Rpm

chris51

New Member

Posts

74

• May 16, 2015

• #1

Hiya, my freelander rpm needle keeps jumping around at idle lately. When its cold on a morning it idles at 1100 rpm then once i get to work its about 800rpm and today it was jumping between 700 and 800 rpm. Whats going on ? Is this normal ?

Chris

 

T

tyrefitter

Active Member

Posts

232

Location

stoke-on-trent

• May 16, 2015

• #2

hi would help to no what engine and year it is.
Trev

 

Hippo

Lord Hippo

Posts

53,850

• May 16, 2015

• #3

They rev higher on tick over when cold to warm them up quicker. Revs on tick over drop when warm.

 

chris51

New Member

Posts

74

• May 16, 2015

• #4

It a k series 51 plate mate. That makes sence hippo, even when it warm up tho it keeps reving up and down from 700-800 rpm i can feel it through the car is that normal aswell ?

 

htr

Well-Known Member

Posts

1,557

Location

Central Otago, Southern New Zealand

• May 17, 2015

• #5

chris51 said:

It a k series 51 plate mate. That makes sence hippo, even when it warm up tho it keeps reving up and down from 700-800 rpm i can feel it through the car is that normal aswell ?

Click to expand...

Maybe clean the IAC valve [Inlet Air Control]. Pull the hose off and spray some carby cleaner into the valve itself, others have used WD40 instead.

 

chris51

New Member

Posts

74

• May 17, 2015

• #6

Ahh ok, ill get some carb cleaner and give that a try first.

 

Alibro

Well-Known Member

Posts

7,182

Location

Northern Ireland

• May 17, 2015

• #7

Had the same problem myself and sprayed WD40 into it which helped a lot. I also ended up replacing plugs, plug leads and coil packs. If yours has a distributor cap you might need to change it and the rotor arm too.
I think changing the coil packs made the biggest difference.