Mud-club

Vehicle & Technical => Range Rover => Topic started by: Wolfie_ on February 04, 2006, 19:32:06

Title: It wont start!
Post by: Wolfie_ on February 04, 2006, 19:32:06: My '88 rrc wont start! I have spark but the fuel pump was'nt working so have traced the fault right back to the fuse so far,no power to the fuse,havent traced it any further yet but i bypassed the fuse and put a live to the battery so i have fuel, I have changed everything I can possible think of to do with the engine running, relays ecu airflow meter, ignition switch,cold start sensor etc, but al to availe,still wont start and still no power to the fuse.While im turning it over sometimes it will fire and at one point even manage to get it to sound as if it was going to run but as soon as i let go of the key nothing.Im going to try and trace power fault right back to the source but in the meantime can Anyone shed any light on the problem?

Please help

P.S. I threatened it with the hammer,I offered it nice new shiney bits, Ive even threatened to burn it and none of that worked either
Title: It wont start!
Post by: Thrasher on February 04, 2006, 19:58:07: Coil giving weak spark.......
Title: It wont start!
Post by: Wolfie_ on February 04, 2006, 20:02:51: yeah thought that as well but I changed that aswell and getting a good spark :?
cheers though
Title: It wont start!
Post by: Thrasher on February 04, 2006, 20:06:20: The pump won't fire in EFI (I think) if the spark is not good enough. Check the voltage across the pump fuse. Secondly, check the ignition amp. If you have fuel, air and spark the only other thing I can think of is timing way way out, bad rotor, knackered dizzy cap, dodgy coil lead...the list goes on ;-)
Title: It wont start!
Post by: Wolfie_ on February 04, 2006, 20:15:44: Quote from: "Thrasher"
The pump won't fire in EFI (I think) if the spark is not good enough. Check the voltage across the pump fuse. Secondly, check the ignition amp. If you have fuel, air and spark the only other thing I can think of is timing way way out, bad rotor, knackered dizzy cap, dodgy coil lead...the list goes on ;-)

I dont have any power at the fuse at all, checked/replaced all the rest, am at the moment thinking that what ever is causing no power to the fuse is causing it not to start :?

Ignition amp, is that the box attached under the airflow meter? if so I've change that as well

cheers

Ian
Title: It wont start!
Post by: H on February 04, 2006, 20:31:48: ignition amp is the small box attached to the side of the dizzy
Title: It wont start!
Post by: Wolfie_ on February 04, 2006, 20:34:22: cheers I havent changed that, Ill give it a go
Title: It wont start!
Post by: Range Rover Blues on February 05, 2006, 01:53:50: I think your ECU is screwed, the pump should run for a second when you turn on the ignition to pressurise the system, you can hear it running if all is quiet around you.

Try squirting some easy start down the plenum chamber, if it coughs at all then chances are there is no fuel.
Title: It wont start!
Post by: Grunter on February 05, 2006, 17:44:20: have you checked the pressure regulating valve, it may be allowing the fuel straight back to the tank, if you have the flapper type airflow meter remove the filter and with the ignition on press the flap in and the fuel pump should run, you should be able to hear the pump noise change as the pressure builds, and you can just about hear the fuel returning through the valve once the pressure is reached.

HTH
Title: It wont start!
Post by: Wolfie_ on February 05, 2006, 20:38:31: where is the pressure regulating valve as i dont think ive checked this?
Title: It wont start!
Post by: steve prosser on February 06, 2006, 13:07:50: Have a look at this if its any help.

http://www.pixeltechnology.co.uk/wedge/maint_fuel_injection.pdf
Title: It wont start!
Post by: Wolfie_ on February 06, 2006, 13:29:20: Cheers Steve

It gives me plenty of tests that I can perform so hopefully track the problem down
Title: It wont start!
Post by: steve prosser on February 06, 2006, 14:15:49: No problem
Hope its of help

I had a simular problem with mine, but didnt have the power problem at the fuse like you have.

steve
Title: It wont start!
Post by: Wolfie_ on February 06, 2006, 20:21:48: Quote from: "wolfie_"
where is the pressure regulating valve as i dont think ive checked this?

Found it, changed it, but still doesnt start :?
Title: It wont start!
Post by: DaveS on February 07, 2006, 09:48:48: Mine would'nt start, similar problems, there was a loose earth lead on the engine which stopped the relayfrom working.

I think there are two earth connections on right cylinder bank (looking from front)

I'm not sure where it is as my local garage got it going (I gave up after hours of frustration-and had to go to work!).

I beleive there is a relay activated by the coil Its close to the coil on mine-on left side of engine- as well as the relay under the seat.
Title: It wont start!
Post by: Wolfie_ on February 07, 2006, 20:44:03: Quote from: "DaveS"
Mine would'nt start, similar problems, there was a loose earth lead on the engine which stopped the relayfrom working.

I think there are two earth connections on right cylinder bank (looking from front)

I'm not sure where it is as my local garage got it going (I gave up after hours of frustration-and had to go to work!).

Ill have alook, maybe after the body lift I snapped one, worth a look
Title: It wont start!
Post by: DaveS on February 08, 2006, 09:44:49: Could be, mine started not long after I had a head gasket done, they said one earth bolt was loose and rounded off, so they put in a new one. Hope you find it :x
Title: It wont start!
Post by: Wolfie_ on February 09, 2006, 15:24:39: At last I've fixed it. Changed the spark plugs and it started first time. :roll: :shock: :?:
Title: It wont start!
Post by: steve prosser on February 09, 2006, 15:40:43: Glad you got it sorted now

There are some strange faults at times
Title: It wont start!
Post by: DaveS on February 10, 2006, 09:39:47: Glad it got sorted ,strange how these things happen!!! :x
Title: It wont start!
Post by: Wolfie_ on February 10, 2006, 13:46:13: Thanks, I had just about given up hope and was about to :cry: At least I can get back on with the suspension lift now