454 misfire

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454 misfire

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454 misfire - Jan. 22 2008 12:04:50

Quadcab

Posts: 282
Joined: Jan. 29 2005
From: North Wales
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A mate of mine is looking at buying a Winnebago type RV. It has a Chevy 454? about 7.4litre. When you try and start it in park you have to "waggle" the shifter to get it to fire up. I suspect this is to do with the park switch. Does anyone know how expensive it's likely to be to fix?

The other problem is that when it's running there is a misfire. There's no blue, or any other colour smoke from the exhaust, so I think it's electrical. I heard in the past that these motors are prone to HT lead and dizzy cap failure? Again any ideas as he's trying to decide whether or not to take a punt at it but is terrified of having to throw a load of money at it.

Thanks

Kev.

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RE: 454 misfire - Jan. 22 2008 13:02:02

fjmods

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From: Suffolk, England
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Not the kinda thing you want breaking down on you !

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RE: 454 misfire - Jan. 22 2008 14:00:21

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From: United Kingdom
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bulletproof them 454's. it will want a good blast out and some wd40 round leads n cap.. maybe a bit a build up inside cap but nowt to worry about, they need to be running as smooth as poss to get a nice 6 mpg

, as for the inhibiter switch its a nowtpence item but a must to save yers been stuck in middle a nowere, they can be bypassed but fancy firing one a them huge things up in drive mode..

tell yer mate to get it bought and hold on tight. ???is it on lpg kev..

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RE: 454 misfire - Jan. 22 2008 19:53:10

Quadcab

Posts: 282
Joined: Jan. 29 2005
From: North Wales
Status: offline

Thanks for the info Deej. This things a '94 and only done 22000 with documentation to prove. I'll pass on the info though I got the impression he was gonna bid the guy low enough to cover any repair bill!!

It aint on lpg yet but he says he will do it asap. He's running a v10 Ford Triton engined jobby at the minute and he reckons if he's careful he manages 6 mpg

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RE: 454 misfire - Feb. 27 2008 14:02:56

Pete

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From: North Wales
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Did your mate buy it then Kev??

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RE: 454 misfire - Feb. 28 2008 18:12:30

Quadcab

Posts: 282
Joined: Jan. 29 2005
From: North Wales
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Says he got it Pete, but I ain't seen it yet.

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RE: 454 misfire - Feb. 29 2008 17:07:22

350Vet

Posts: 1383
Joined: Mar. 17 2006
From: United Kingdom
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Kev on the switch thingy you should just be able to start it in neutral and therefore not have to bother getting the switch sorted - the vette does the same now and a again.

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