Hi, I have a TR 2.6 Fuel Injected, Automatic Magna. Recently a radiator hose burst and prior to that car was running pretty good. When replacing hose, I noticed that vacuum hose that goes from right side of cover to reat of manifold had a small split and was causing a sort of squeeling sound. I replaced the vacuum hose and car ran ok. Then after a few days, car is sluggish on acceleration but will cruise at 60km/h ok if I feather the pedal and dont hit it hard. If I go to kick it down, theres a feew coughs, maybe a slight backfire and she picks up speed but its a bit shaky.
Today I noticed that vacuum hose was flat as buggery and you could really hear it sucking. I got another hose but car still misfires and pops when foot is out down fast. As mentioned, If I ease the accelerator it runs ok.
I have replaced plugs. Could it possibly be injectors clogged? I thought maybe put some Wynns in the the tank. I'm not a great fountain of knowledge with injected cars.
Any advice appreciated.

your PCV is blocked mate. you can either buy a new one or clean this one out with petrol.

how;

plunge the PCV valve into a 'puddle' of fuel. shake the valve until you feel movement and you will begin to see black/brown crap floating around in the fuel and exiting the valve. keep shaking until it stops coming out.

to test;

without breathing in, put the PCV to your mouth and give short bursts of air in and out. the air should go only one way as it is a non-return valve. like i said dont breathe in it's not good for you. pretend you're shaking a drink in your mouth if you know what i mean

all the best.

*Can also use carby cleaner sprayed directly into the PCV, whatever works though just giving another way of doing it :)

Thanks fellas. I've just gotta find PC valve now.......When serviced last, mechanic mentioned PC valve was faulty. He charged an arm and a leg for other work so I thought he was all crap as car idled and ran good. So put it off. I'm not a mechanics bum hole guys but have learnt things by doing over the years. So heres another learning experience. Once again thanks fellas

Well fellas I dunked the valve in petrol and let it sit there for awhile. Then I shook some crap out of it and I could hear the ball moving freely inside. Put PCV valve back in place and reconnected hose but didnt make any improvement,. Actually since I first posted my problem at this threadm the car is getting worse. Even at idle it misses like hell and backing out of the driveway steadily, it pops and farts like crazy. Taking it for a run, it pops and backfires and shudders when accelerating. Put the accelerator down and there's a pause before cars speed picks up but as mentioned, shudders and pops and a few backfires. My old car may be dying on me eh? I read somewhere that its not neccesary to replace PCV valves as they are just a ball and spring basically and that cleansing virtually gives them new life.

try disconnecting the battery for an hour or so , then start it and let it idle for 10 minutes , then go for an easy drive...

Seems to let the computer reset itself , although some say it does zilch; it worked on HER 2.4 TS.....

Well fellas I dunked the valve in petrol and let it sit there for awhile. Then I shook some crap out of it and I could hear the ball moving freely inside. Put PCV valve back in place and reconnected hose but didnt make any improvement,. Actually since I first posted my problem at this threadm the car is getting worse. Even at idle it misses like hell and backing out of the driveway steadily, it pops and farts like crazy. Taking it for a run, it pops and backfires and shudders when accelerating. Put the accelerator down and there's a pause before cars speed picks up but as mentioned, shudders and pops and a few backfires. My old car may be dying on me eh? I read somewhere that its not neccesary to replace PCV valves as they are just a ball and spring basically and that cleansing virtually gives them new life.

they actually do get clogged beyond cleaning. so sometimes a new one is in order.

have you cleaned your engine bay recently? if you have, remove your distributor cap, wipe with a rag and spray WD40 inside. also, check that your ignition coil is functioning properly.

replace your ignition leads and/or spark plugs.

Peterr; disconnecting battery for more than 10secs will reboot the ECU and TCU and will cause them to relearn. however, if this is more a 'mechanical' issue rather than an electronic issue, then rebooting the ECU will do absolutely nothing.

Well I have cleaned the dizzy cap. How do you check if coil is working properly?
When I start car it starts without any problem but idles bloody rough and I can smell slight fuel smell with engine running. Not game to go for drive in the car now as even backing out of garage and driving back in is as rough as buggery with car shuddering constantly.
Thanks for all your posts guys. Appreciate it

Well I have cleaned the dizzy cap. How do you check if coil is working properly?
When I start car it starts without any problem but idles bloody rough and I can smell slight fuel smell with engine running. Not game to go for drive in the car now as even backing out of garage and driving back in is as rough as buggery with car shuddering constantly.
Thanks for all your posts guys. Appreciate it

if you're game, run your hand along each of the ignition leads trying not to touch the one next to it. if you get zapped, you've got yourself a spark leak. change the ignition leads

unplug the coil lead and crank the engine. remove one spark plug at a time. if one is wet, then the plug is not sparking and needs to be changed. it's definately an ignition issue bud

Thanks mate. I got zapped on number 4 lead

Gee Thanks Ian. I'm no longer "Crossed eyed" mate. Well I have new leads but pretty much same problem. Getting heaps of spark at each plug. So I went back to PCV valve and cleaned it again. Started better and idled better. Drove up the road just cruising on 60km/h, went well and pretty smooth. Came to hill and started farting and backfired again. Got to straight stretch, ran reasonable smooth again with slight miss. So I am thinking of going to Just Mitzys tomorrow morning and getting a replacement valve. Quoted $20 used.

Is your dizzy in good nick? Cap and rotor OK?

;1151264']Is your dizzy in good nick? Cap and rotor OK?

Appear to be mate.

Appear to be mate.

Strange, timing OK?

Good question. Not overheating and temp runs at normal. Actually takes a little while from cold to go to normal temp mark driving steady. Even when coughing and fartin temp is normal. So you dont think PCV valve TUFFTR?

Good question. Not overheating and temp runs at normal. Actually takes a little while from cold to go to normal temp mark driving steady. Even when coughing and fartin temp is normal. So you dont think PCV valve TUFFTR?

Sounds weird for a PCV to do this considering it has nothing to do with timing or temperature control which would cause these issues, it just vents pressure in your crank area..(madmagna will correct me I'm sure if I'm wrong)
But yeah It's a strange one. Out of my league really just throwing up the idea that the PCV may not be the cause

Positive Crankcase Ventilation Valve. (99.99% sure:P)

it relieves the pressure from inside the engine and dumps it into the inlet manifold. so emulate this, remove your intake pipe but leave the AFM plugged in. you'll see it'll run but it'll run rough as guts.

its quite possible that it is the PCV.

It does indeed. I tried that. and the way the engine ran is similar to before I cleaned out the valve. The car idles a bit smoother but still carries on under load. so I'm hoping a PCV valve replacement will do the trick. Actually in an earlier post, I mentioned that a mechanic told me that PCV valve was a problem when he serviced car. He said he couldnt give it his best tune up due to valve and at that time car did have a slight rough idle at traffic lights if sitting for a little while, while lights went through their cycles. He wanted an extra $150 to supply and fit valve on top of high prices for other work. I didnt have the coin then so put it off.

car did have a slight rough idle at traffic lights if sitting for a little while, while lights went through their cycles.

you might find this is very common in bigger engined 4cylinder cars. really anything over 1.8L ends up needing balancing etc and in the end becomes shaky. the magna autos are horrific at this with some feeling like theyre literally shaking the bodywork off.

Well, Its not PCV Valveby the looks of things, Got a replacement (used) this morning and srill the same. Wrecker gave it a good squrt WD40. So I doubt very much that I'd be unlucky enough to buy a really clogged valve.
Had a few Kms to drive to get it and then back home. Feathering pedal, not too bad but the slightest acceleration brought on the shakes and shudders whilst under load.
When I got home, left it for awhile then went out and started up again and heaps of white smoke for a little while. I'm stuffed guys.

Well, Its not PCV Valveby the looks of things, Got a replacement (used) this morning and srill the same. Wrecker gave it a good squrt WD40. So I doubt very much that I'd be unlucky enough to buy a really clogged valve.
Had a few Kms to drive to get it and then back home. Feathering pedal, not too bad but the slightest acceleration brought on the shakes and shudders whilst under load.
When I got home, left it for awhile then went out and started up again and heaps of white smoke for a little while. I'm stuffed guys.

white smoke is normal if the car is cold. there would be condensation forming in the exhaust. however if it does it when cold it may be more sinister.

has your car been rattling lately? have ou noticed if it uses more water/oil?

remove radiator cap and start engine. if you get bubbles it's possible head damage. have you removed the spark plugs and checked for contamination on the electrodes?

without seeing and feeling, it's quite hard to diagnose...

Recently a radiator hose burst and prior to that car was running pretty good.





When I got home, left it for awhile then went out and started up again and heaps of white smoke for a little while. I'm stuffed guys.


Well its your head gasket now.

sorry for the bad news

do what yann89 saids.


white smoke is normal if the car is cold. there would be condensation forming in the exhaust. however if it does it when cold it may be more sinister.

has your car been rattling lately? have ou noticed if it uses more water/oil?

remove radiator cap and start engine. if you get bubbles it's possible head damage. have you removed the spark plugs and checked for contamination on the electrodes?

without seeing and feeling, it's quite hard to diagnose...

Also check the colour of your oil to see if it creamy.

No visible signs to suggest head gasket like milky oil in radiator or oil filler cap. Oil looks ok and water levels have been fine. Not overheating. I know gaskets can blow between cylinders though. No bubbles in radiator.
No smoke now. Yeah I know the scene with white smoke pissing out while a cars running with blown head gasket. This cars possessed I think!
When the car first started playing up. I cleaned the plugs. Ran fine.No shaking and bad misfires. Then after a few days. Problem arose again. I bought new plugs. Ran like a dream. Then after a 40 km trip, started playing up again. Initially, the cleaning of plugs and then replacement, did make car run ok.
Temperature remains normal even when car is running like a hairy goat and idling at roadworks holdups.

350,000kms on clock now. Water level ok. Might use a little oil on long trip. Not guzzling through the oil though

Might be the valve stem seals seeping oil onto the plugs and fouling them up, its whats happening to my mate's Rodeo.

Its electrical. I removed rotor and cleaned again but this time in better light and saw the blade (if thats what its called) was pitted a little on the end. Filed it down. Shiny as buggery and also found that one of my leads (new) was broken at the end inside the cover. Car runs like a dream now. Took it for a bit of a hike up and down steep hills. Tramped it a bit when able to and didnt miss a beat. No pops, backfires or anything. Hope all is ok now

Thanks for all your posts . Its a great forum here.