air filter box

Submitted: Thursday, May 20, 2004 at 23:36
ThreadID: 13041 Views:3817 Replies:7 FollowUps:0
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Hi all i have a gq patrol 93 running GAS & PETROL
the %$#%##% thing back fired the other day and guess what ???
the filter box hasbleepit self MMMMMmmmmmmm not happy ,wreckers tell they are very hard 2 get second hand MMmmmm not happy .Q. Any way has anyone repaired this hickup using a box from another make of 4x4 ????

If anyone has any ideas please let me know PLEAS PLEASE..........
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Reply By: Big Trev - Friday, May 21, 2004 at 08:08

Friday, May 21, 2004 at 08:08
Sorry Gunnie, but it happens to most LPG powered vehicles if you muck around with the accelaerator in the starting process. I did it to my Fairmont, and blew the air box up. Frightenedbleepout of my wife who was asleep in the bedroom next to the garage, now that was pretty funny.

I don't think you can fix it, other than getting the car tuned by a gas specialist, and not touching the accelerator when starting.
AnswerID: 59512

Reply By: RenoRXGQ - Friday, May 21, 2004 at 13:58

Friday, May 21, 2004 at 13:58
HI there,
same problem with my 94GQ. New air box is something like $950....%&#

In Penrith there is a wrecker, Penrith Auto Wreckers, which has a few Patrols Ph. 02 4732 3499. Cost me $150 for the airbox a month ago.

Hope this helps.
AnswerID: 59570

Reply By: KO2004 - Friday, May 21, 2004 at 14:41

Friday, May 21, 2004 at 14:41
We just got rid of our gas. It was a pain in the backside. The constant dedededededededede when you go to start it (all of you who have gas know the sound), it runs likebleepand you can't tow a thing.

We're back on petrol.
AnswerID: 59577

Reply By: Member - Jeff M (WA) - Friday, May 21, 2004 at 14:45

Friday, May 21, 2004 at 14:45
Holden v6's have the same problem, the v8s run good on gas though, hence the amount of v8 holden taxis...
Common fix for the problem was to drill a 20mm hole in the top of the airbox and put a rubber gromit in there, then if it backfires it will blow the gromit out and release the pressure instead of blowing the sh%^ out of the air box.

AnswerID: 59579

Reply By: awill4x4 - Friday, May 21, 2004 at 19:40

Friday, May 21, 2004 at 19:40
Gunnie, I'm assuming that as your Patrol is a 93 model it's a fuel injected version. I'm pretty sure that the air filter element in an aftermarket Ryco replacement is an A360 which I believe is also the replacement filter for most V6 commodores.
If this is the case, perhaps a commodore airbox could be modified to suit.
No guarantees but maybe it's an alternative option.
Regards Andrew.
AnswerID: 59619

Reply By: hof - Friday, May 21, 2004 at 20:58

Friday, May 21, 2004 at 20:58
Hi, i've got a '94 EFI 4.2 GQ converted it to gas in '95. When fitted they placed a valve just before throttle flap. Circular, about 20mm wide whith a thick rubber seal around it. Works well, if there is a blow back band lifts and releases gas. Pumped throttle once and what a bang, even smoke poured out, thought it was on fire. Never again. EFI's allways start on petrol so i increased the timer slightly, lot better. If car has been standing for a time i turn the key till fuel pump stops then start, no prob. Last point,one guy said get rid of the gas 1/ I couldn't afford to run on petrol 2/ runs just as well on gas,no differance
AnswerID: 59635

Reply By: colin - Saturday, May 22, 2004 at 16:05

Saturday, May 22, 2004 at 16:05
have a look at the 4.2 diesal they have a pre cleaner which sits in the front passenger side, you should be able to plumb that to the petrol. Col
AnswerID: 59696

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