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Old 05-05-2006, 05:29 PM   #1
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I have an 89 holiday rambler 454 chevy p chassis when its warmed up you need extra power and dump it it really bogs down anyone know the problem in this?
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Old 05-05-2006, 05:29 PM   #2
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I have an 89 holiday rambler 454 chevy p chassis when its warmed up you need extra power and dump it it really bogs down anyone know the problem in this?
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Old 05-05-2006, 06:02 PM   #3
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Not much to go on here. You have the 4-bbl Quardjet carb I believe?
things to check...
fuel filter
fuel pump pressure
accelerator pump on carb
carb adjustment.
cripmed or collapsed fuel line

When was the last time you had an engine check and full tune up?

The list can go on and on....
weak ignition module when warmed
plug wires breaking down

By the way...welcome aboard. Some more suggestions should follow...

Ken
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Old 05-06-2006, 12:26 AM   #4
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<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by dhrv:
I have an 89 holiday rambler 454 chevy p chassis when its warmed up you need extra power and dump it it really bogs down anyone know the problem in this? </div></BLOCKQUOTE>

If you have a carborator then it may be time for a rebuild. There are rubber parts that just wear out over the years in a quadrajet that will effect the operation of the secondary boars and metering rods that come into play when you stomp on it. Also there may be a kickdown rod or cable going from the carb to the transmission. If this is not operating correctly then your transmission will not get the downshift signal from the carborator linkage when you floor it. The vacuume modulator on the tranny may also need attention too.

Start with an old fashioned tune up and then proceed as required. Don't forget to check the carb to manifold bolts, carb to manifold gasket, fuel filter, fuel pump pressure, distributor cap, rotor and engine timing as these can all have an effect on acceleration.

Regards,

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Old 05-06-2006, 12:54 AM   #5
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dhrv, welcome to iRV2.com. We are glad to have you join us here and hopefully we can be of some help to you. I think that you have been given some good recommendations to start with. Do the simple things first and proceed to resolving the problem. Good luck and keep us posted to the progress.
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Old 05-06-2006, 05:51 AM   #6
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Fuel filter?

Cheap to change.
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Old 05-06-2006, 02:48 PM   #7
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thanks for the response did the fuel filters both of them seems like its working better.will find out this upcoming weekend maybe the carb needs a rebuild? seems like a very nice board to come to new to the motorhome rving got it last year really good site tyhanks again
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Old 05-06-2006, 02:59 PM   #8
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dhrv, glad we were able to help. Do you have any idea of the service records on the MH?
Ken
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