100 Series Petrol 01 Landcruiser fuel relay problem

Submitted: Saturday, Jun 14, 2008 at 17:02
ThreadID: 58776 Views:16911 Replies:4 FollowUps:7
This Thread has been Archived
Hi to all, can you advise on our problem. Last year had a problem with no power to the fuel pump. Pump ok, all fuses and relays checked ok. Car put into Toyota dealership - took 5 days - dash removed and relay replaced behind the dash ($1500 !!) six months later the car has stopped again. No power to the fuel pump. Same problem by the look of it. Before we go back to Toyota dealership, thought we would see if anyone has had this problem as it is very inconvenient to have the car stopping. RACQ can't get us going - only a tow and we are hoping on a trip to Hay River in July/Aug. As you can imagine, we wouldn't want to go with the car like this. Look forward to any help, or advice you can give.
Couldn't ask for any better!

Lifetime Member
My Profile  Send Message

Back Expand Un-Read 0 Moderator

Reply By: SPRINT-GTO - Saturday, Jun 14, 2008 at 17:14

Saturday, Jun 14, 2008 at 17:14
Champagne
If you have no luck with replys suggest you post same message on "ICOOL" website or alternatively on the "4WD ACTION" site.
Lot of TOYOTA gurus on these sites may be able to come up with a solution for you .
Brgds
Gary
AnswerID: 309942

Follow Up By: champagne - Saturday, Jun 14, 2008 at 17:27

Saturday, Jun 14, 2008 at 17:27
Thanks Gary, will do that now.
Jan
Couldn't ask for any better!

Lifetime Member
My Profile  Send Message

0
FollowupID: 575899

Follow Up By: champagne - Saturday, Jun 14, 2008 at 17:49

Saturday, Jun 14, 2008 at 17:49
Hi again Gary,
Have registered with 4WD ACTION but cannot find a site with ICOOL relating to 4WD's. Have I spelt this correctly. Many thanks
Jan
Couldn't ask for any better!

Lifetime Member
My Profile  Send Message

0
FollowupID: 575908

Follow Up By: madfisher - Saturday, Jun 14, 2008 at 17:54

Saturday, Jun 14, 2008 at 17:54
Should be (L) cool.
Cheers Pete
0
FollowupID: 575911

Reply By: autosparky - Saturday, Jun 14, 2008 at 17:45

Saturday, Jun 14, 2008 at 17:45
check fuse links at main battery. they are hidden behind a plastic cover that makes up or looks like it is part of the terminal. at the bottom there are plugs ,these corrode and may need cleaning. you may have to remove the battery to check them properly. corrosion is caused by acid etc
AnswerID: 309952

Follow Up By: champagne - Sunday, Jun 15, 2008 at 14:21

Sunday, Jun 15, 2008 at 14:21
Thanks, have followed this up this morning. Didn't solve it unfortunately. Thanks for the suggestion. Have got it being towed to an auto-electrician tomorrow - road service guy advised not to return to Toyota dealer. Fingers crossed.
Couldn't ask for any better!

Lifetime Member
My Profile  Send Message

0
FollowupID: 576111

Reply By: Ranger75 - Saturday, Jun 14, 2008 at 18:28

Saturday, Jun 14, 2008 at 18:28
I would be more than pee'd off with the Toyota dealership that fixed this last time if they didn't explain what the problem was and how they fixed it in DETAIL and it has happened again so soon.

Toyota know how to fix this one even though there is a number of possibilities as to cause.

First up: this engine logs problems such as this and records a Diagnostic Trouble Code:- DTC for short.
What was the DTC code last time? The dealer should have recorded this in the workshop records!!!!!!!

If it was DTC 32---only guessing here but I bet I am Bl**dy close, then we know there was a malfunction with the Fuel Injection pump power supply.
No Engine warning light either in Normal mode nor in Test mode.
Bet you didn't have the engine warning light come on!!
Now possible causes---

Engine sensor malfunction:
There are 3 to look at
SPEED SENSOR -check the resistance at room temp - should read between 205 and 255 ohms.

SPILL CONTROL VALVE SENSOR - same deal - resistance should be between 1-2 ohms.

TIMING CONTROL VALVE SENSOR - again 10-14 ohms, and check the relay to ensure it clicks when voltage applied.

Spill Valve relay now needs to be checked again, that's the one they replaced last time (behind the glove box LHS relay block. $40 relay cost plus fitting say $70. NOT $1500 because they waste your time and money with their incompetence.

If all these are OK then we head for the INJECTION PUMP CORRECTION UNIT (which incidentally I would head to first anyhow)
3 possibilities here.
1: short in the circuit harness or connector
2: malfunction of the Correction unit
3: malfunction of the engine ECU.

Now let's say I am a Toyota service engineer I would say to myself, this vehicle has been operating normally then has a which one of my dealers "fixed" with a relay change.

That doesn't sound like the ECU is at fault, nor does it sound like the Injection pump correction unit is at fault, but it does sound like an intermittent fault in the circuit harness or one of the connectors because it was sudden, no active components faulted during inspection and we could not reproduce the fault -- so it has to be a cracked wire, loose wire or cracked connector.
BSET CHECK THE WIRING HARNESS AND THE CONNECTOR FOR CONTINUITY WHILE SOMEONE MOVES THEM >

AHA there is a TOYOTA procedure for doing just this---let's try that, instead of ripping off the customer with gross overcharging.


Sorry -- I get annoyed when they know how to fix a problem but insist taking people for a ride.

I've opened a bottle of Red now, so I'll mellow a bit tonight.

Hope it helps you with the problem
AnswerID: 309961

Follow Up By: champagne - Saturday, Jun 14, 2008 at 18:35

Saturday, Jun 14, 2008 at 18:35
Super thanks. Feel like sending you another bottle of red (or two). Will go into all this in the morning with better light (and better frame of mind) however I'm not sure I know how to check some of these things, but will take a copy of this to the Toyota dealer on Monday. Will keep you informed.
Couldn't ask for any better!

Lifetime Member
My Profile  Send Message

0
FollowupID: 575930

Follow Up By: champagne - Sunday, Jun 15, 2008 at 14:25

Sunday, Jun 15, 2008 at 14:25
Sunday now, thanks Ranger 75 for your suggestions. We had the road service people check the car today and they looked a bit perplexed at your suggestions. It seemed a bit beyond them, so now the car is being towed to an auto-electrician tomorrow. Not the Toyota dealer at their suggestion. Thanks once again for taking the time to give us your comments. Toyota Landcruisers just shouldn't do this. We have had 4 of them and no problems with any of the others.
Couldn't ask for any better!

Lifetime Member
My Profile  Send Message

0
FollowupID: 576113

Reply By: qubert - Saturday, Jun 14, 2008 at 20:40

Saturday, Jun 14, 2008 at 20:40
spray your car for ants every couple of weeks. they get in the relays
AnswerID: 309990

Follow Up By: cambelt - Sunday, Jun 15, 2008 at 22:29

Sunday, Jun 15, 2008 at 22:29
Um isnt it a petrol , petrols dont have injection pumps, the fue pumpl relay is on the left side under the bonnet and it switches the fuel pump voltage high or low .
Dave
0
FollowupID: 576248

Sponsored Links