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1990 mod 740 driveability problem 700

posted by  woodchuck on  Sat Mar 3 14:18 CST 2012
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last visit: Fri Feb 21 12:21 CST 2014
[RELATED]

i'm reminded again that many driveability problems can be traced vacumn leaks in aging rubber hoses and connectors. my old girl was intermittantly hesitating on acceleration from a stop for some time. the situation deteriorated resulting in engine check light, code 121, MAP sensor input. my 740 has a regina system.

i checked the MAP system finding the rubber connecters at the sensor and the intake manifold dry and cracked. i replaced them with connecters i found at autozone (who knew!). $5.00 and 15 minutes later the car now runs better than it has for quite a while. wish it was always this easy.

just a reminder, check those hoses, you might find a cheap easy solution.

keep'em rolling, chris






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