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1994 Other Chevrolet Models loss of power

Tiny
BETTLE
  • MEMBER
  • 1994 CHEVROLET
  • V8
  • 2WD
  • AUTOMATIC
  • 71,000 MILES
Have a 454ci Chev Motorhome that start good, runs good but after twenty - thirty minutes loses power and just won't have enough power to move the MH. Stopand turn it off. Wait ten fifteen minutes start up and is ok foir many miles. Had in the shop could"not find any thing wrong with it. There solution was to pull off like I did. Thats not always possible in a thirty foot MH.
ANY IDEAS? THANKS BILL
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Monday, March 22nd, 2010 AT 5:57 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have a check engine light on and when was your last tune-up?
Are you sure the transmission is not slipping? If not, see below:

Lack of acceleration, chugging, hesitating, bogging etc. Could be caused by one of the following below.

Inspect and test all the following listed below and get back with some results

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.
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Monday, March 22nd, 2010 AT 9:53 PM

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