2003 durango sxt with 4.7L; hard start, 3500 rpm rev limiter, no cruise control

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#1
My durango 4.7L auto. SXT model. with 99000 miles just got these symptoms all at once the other day.. the vehicle takes 5 seconds exactly to fire on startup. the engine rev limits at 3500 rpm when in drive, also the cruise control doesnt work anymore. are all of these related and what may be the problem..

thanks for looking
 
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#2
let us know ....
is the check engine light on???
Any modifications, add on's or aftermarket parts also recient repairs or maintance?
 
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#3
Re: 2003 durango sxt with 4.7L; hard start, 3500 rpm rev limiter, no cruise cont

check engine light has been on for an o2 sensor the heated one i think. and it goes on for this i know because it doesn't happen all the time. when it happens it beeps. and it stays on until the engine is shut off. it sometimes starts right up but when it doesnt start up it takes that 5 seconds to start. it happens about 80% of the time. when i doesnt happen and i hit 3500 rpm it goes on. its exactly 3500.

NO mods at all besides an air intake and all the sensors went right into it. the air temp sensor and i think the pcv hose.
 
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#4
I will try to get you fixed
first thing we need is to get all the codes from PCM, often the auto parts stores will do this as a customer service...

We are all hoping you are not another victum of the evil K&N & their hp promises.....let us know.

Do me a favor and help me understand, you claim CEL & problem with 02 sensor ......why woild you ignore this ...

ALSO when you get them please post the codes....pxxxx
 
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#5
Re: 2003 durango sxt with 4.7L; hard start, 3500 rpm rev limiter, no cruise cont

well they are k and n knock offs since k&ns patent expired. ok i will get my codes.
the reason i didnt fix the heated o2 sensor is because i was getting better gas mileage from it when it was bad. i know this is stupid and my air to fuel mixture might be off but now days if its cheaper to drive i figured it would be ok...

will get the codes and fix the o2 sensor.

thanks
 
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#6
Re: 2003 durango sxt with 4.7L; hard start, 3500 rpm rev limiter, no cruise cont

here are the codes....

p0440
p0344
p0340
p0440
p0340
the last 2 came up 2 times.......

it says 5 codes...
 

kev2

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#7
Your problem with the 02 sensor is not showing any code??

P0440-Your vehicle has a problem with the EVAP system.....laypersons refer to this as the Gas cap codes....check gas cap seal, evap emission vacuum lines, canister, solenoids- then if nthing* you will need a scanner to continue troubleshooting.

P0340 &p0344 Are you likely problem with RPM>>>> by any chance is the transmission shifting different??
Both codes refer to the CAM position sensor, you can check wiring connector, location rear of left Cyl head/valve cover area, triangle shape if I recall .

*nothing I mean anything visable such as loose hoses, split hoses, unpluged or damaged components...
 
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#8
Re: 2003 durango sxt with 4.7L; hard start, 3500 rpm rev limiter, no cruise cont

thank you all codes are clear and fixed.... i just replaced the cam position sensor. it fixed the problem and the 02 sensor code hasnt returned..