Breakdown Information
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RV particulars: Itasca Sunflyer
Driveline 454, carb, th400
Miles:62,000
Year:1989
Break Down Description: Lost power after driving 2 or more hours
Symptoms Engine popping through exhaust and carb
Effect had to camp on side of road
Cause: This problem had several causes drove me crazy. During test drive we noticed engine popping under a load at 60 mph. Previous owner had new wires and plugs and cap and rotor put on, next test drive good so we bought it. Several short trips it started acting up again. Pulled the engine cover to have a look a round. Mechanic didn't bother to route the wires the way he should have several laying on manifolds and they didn't fit in the heat shields properly, they kept falling off on short trips. So replaced with NAPA truck wire with ceramic boots routed correctly. Test drive good. Went on longer camping trip started pulling hills started popping sounded like running out of gas. Had partner pure gas down carb as I tried to keep it running to get to a spot we could get off the road(we were at elev 6700 ft). Next day added in line fuel pump cause I figured tank one was bad and kept on camping. On way home after several mountains started acting up again only we were able to go 15 mph up hill and it got hot. On flat land ran good. Got home dropped the gas tank and looked inside. Looked like a big rusty cow pie right under the pickup. Took to radiator shop and had cleaned and coated for 150.00 tested the fuel pump, it was dead, so bought a new one and put it back together. Also had radiator recored while it was down. Just got back from 4600 mile trip had no problems!
Outcome clean fuel tank and replace in-tank pump. road test good
Driveline 454, carb, th400
Miles:62,000
Year:1989
Break Down Description: Lost power after driving 2 or more hours
Symptoms Engine popping through exhaust and carb
Effect had to camp on side of road
Cause: This problem had several causes drove me crazy. During test drive we noticed engine popping under a load at 60 mph. Previous owner had new wires and plugs and cap and rotor put on, next test drive good so we bought it. Several short trips it started acting up again. Pulled the engine cover to have a look a round. Mechanic didn't bother to route the wires the way he should have several laying on manifolds and they didn't fit in the heat shields properly, they kept falling off on short trips. So replaced with NAPA truck wire with ceramic boots routed correctly. Test drive good. Went on longer camping trip started pulling hills started popping sounded like running out of gas. Had partner pure gas down carb as I tried to keep it running to get to a spot we could get off the road(we were at elev 6700 ft). Next day added in line fuel pump cause I figured tank one was bad and kept on camping. On way home after several mountains started acting up again only we were able to go 15 mph up hill and it got hot. On flat land ran good. Got home dropped the gas tank and looked inside. Looked like a big rusty cow pie right under the pickup. Took to radiator shop and had cleaned and coated for 150.00 tested the fuel pump, it was dead, so bought a new one and put it back together. Also had radiator recored while it was down. Just got back from 4600 mile trip had no problems!
Outcome clean fuel tank and replace in-tank pump. road test good
