Question about 2001 Jeep Grand Cherokee
ERROR CODE P0320 DETECTED INDICATES IGNITION DISTRIBUTOR ENGINE SPEED INPUT CIRCUIT
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Posted on Jan 02, 2017
My truck was doing the same thing.... replaced the crankshaft sensor first, truck would still die after about 10 minutes of idleing, it back-fired thru the engine and blew off the back of the intake manifold. Pulled the monifold, reglued end-cap and put back in truck. STILL died after idleing for 10 minutes. Code PO320 kept coming up ( crankshaft sensor) researched it and found a bad camshaft sensor can cause crankshaft sensor to act up and give code for the crankshaft sensor. Replaced camshaft sensor and the truck runs like a dream !!!!!! I believe the Manifold was cracked for a while causing the 1299 code reading ( vacuum leak) the back-fire finished it off! I would check the back of your intake manifold for a leak. The combination of fixing the vacuum leak , cam/crankshaft sensors seems to have fixed the problem. GOOD LUCK!!!
Posted on Apr 29, 2009
SOURCE: jeep grand cherokee
Just trying to help. Jeep dealer won't tell you what code means? My guess would be in the intake system. MAF sensor? Air intake leak? I don't think its the pos. sensors because your engine would not run (been there done that). Your throttle is cable driven?
Posted on Mar 05, 2010
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