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post #1 of 8 (permalink) Old 10-08-2018, 11:30 PM Thread Starter
 
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Revolt runs bad after a while, shut off-runs good again SOLVED

We have been chasing rough running revolt problem for a while now. . It runs fine for about 20 minutes then starts running rough, spitting Flames out the exhaust and won't rev past an idle. No flashing lights in dash. Shut the key off and restart it and it runs fine again for 10 to 30 minutes. Then it cuts out again shut the key off and start it back up and it runs fine, over and over. Already replaced the temperature sending unit and did the trick with the paperclip to be sure the fan relay works, everything checks out ok and we get the flashing light in the tach. I would like to buy/ borrow whatever it takes to hook into the ECU with a laptop to see what's going on when it does this. Any ideas?

Last edited by thrasher187; 11-23-2018 at 05:30 PM.
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post #2 of 8 (permalink) Old 10-09-2018, 04:25 PM
 
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Re: Revolt runs bad after a while, shut off-runs good again

Steve, If the light in the tack is flashing the ECU thinks the engine is overheating. It will put itself into limp mode. If the temp sending unit is good then the fan might not be turning on or might be turning slower than its supposed to. I've had that happen. Also it could be running backwards pushing the air towards the front of the car instead of to the back. Many of the first Revolts were shipped with the fans wired backwards which caused them to overheat. I've had that problem also. There are thermostats in the Revolts also that could be a problem. I ran mine without a thermostat. The fan should come on at 180 deg.
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post #3 of 8 (permalink) Old 10-09-2018, 04:30 PM
 
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Re: Revolt runs bad after a while, shut off-runs good again

Steve, Randy at Weberpower has the Weber diagnostics. The problem with them is they only tell you what is wrong while the check engine light is flashing. Is your check engine light still connected to the pink and blue wires? Many dealers and owners have cut the wires.
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post #4 of 8 (permalink) Old 10-10-2018, 03:34 AM Thread Starter
 
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I will have to check the check engine light.
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post #5 of 8 (permalink) Old 10-10-2018, 07:47 PM
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Re: Revolt runs bad after a while, shut off-runs good again

Quote:
Originally Posted by thrasher187 View Post
we have been chasing rough running revolt problem for a while now. . It runs fine for about 20 minutes then starts running rough, spitting flames out the exhaust and won't rev past an idle. No flashing lights in dash. Shut the key off and restart it and it runs fine again for 10 to 30 minutes. Then it cuts out again shut the key off and start it back up and it runs fine, over and over. Already replaced the temperature sending unit and did the trick with the paperclip to be sure the fan relay works, everything checks out ok and we get the flashing light in the tach. I would like to buy/ borrow whatever it takes to hook into the ecu with a laptop to see what's going on when it does this. Any ideas?
check your gas cap and make sure its venting
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post #6 of 8 (permalink) Old 11-23-2018, 05:29 PM Thread Starter
 
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Re: Revolt runs bad after a while, shut off-runs good again

Problem solved! There was a half inch of sand in the gas tank. Someone had to have put it in there because there is no way it could have gotten that much from refueling. The fuel pump had gotten very loud. When we pulled it out to check it we found a bunch o fine powder in it. We cleaned it out and put it back together , then it ran fine. It got loud again so we pulled it out and found the same problem so we pulled the tank and found the sand. have had no problems since.
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post #7 of 8 (permalink) Old 11-24-2018, 08:48 AM
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Re: Revolt runs bad after a while, shut off-runs good again

don't you have filters?, thats the first thing i did when i replaced the seat with a TWISTED STITCH.
and your right as many times i have filled mine with fuel at GLAMIS its never got any sand in it. you have somebody adding little sand thats JEALOUS. D.H's
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post #8 of 8 (permalink) Old 11-24-2018, 04:33 PM Thread Starter
 
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Re: Revolt runs bad after a while, shut off-runs good again

filters on ebay for $20 each from Tomsclassic but they aren't on it yet
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