need some ideas

[80lsy gq]

hey guys..just havin some trouble with the rb30 in my patrol..driving along it just loses grunt and doesnt want to rev at all..stays around 2000rpm..seems to happen worse first thing in the morning.wondering if it might be fuel problems,electrical or what.. any ideas greatly appreciated :?: :?

[grover]

make sure the choke (if its auto choke ) is not sticking If it has a cat converter make sure the guts hasnt colapsted a mate of mine had that problem the thing would only do 50 kph till he got a new cat converter now goes great :cheers: :driving:LET US KNOW HOW YOU GET ON :?

[80lsy gq]

thanks mate.ive actually got it booked in to the exhaust shop tomorrow for that exact thing.. see how it goes... alredy checked the auto choke and other things like fuel lines,filters and distributor etc

[80lsy gq]

turned out to be the muffler... seems to be a common problem with the OE style mufflers... the spot welds crack inside the muffler allowing the pipes inside to move and block the chambers restricting flow big time....fixed the problem with a truck style muffler.. feels like a new wagon. :D

[Andy N Di]

Ive got a mate with a 92 model 3ltr he uses as a tow vehicle with the same problem but it only happened when he was towing. Could it br the muffler/ fuel pump?

[embryo]

yes it could, because when towing the car is under greater load, the need for correct combustion prosess right through to the exhaust system is increased. and so under normal conditions it may not be notisable, but there are other causes also. gumed up carbie or injectors, blocked fuel filter, or just crap fuel to start with. condition of ignition system leads, plugs cap etc, even the coil has a greater load put on it so if any of thats bit dicky it could be the problem.

good luck

[BIG GQ]

How many kms has the thing done? Depending on that I would start with a replacement fuel filter if that has not been done for some time and then start looking at other options like exhaust, ignition system, etc. if the fuel filter does not cure the drama.

Cheers
Linc