Question about 1995 Chrysler Cirrus

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Missfiring or bucking while going up hill

The car has 92,000 miles on it.Car bucks when going up hills or up mountains. Does not do it on straight roads only when going up hills or under load. And only when up around 3200 to 3800 RPMs. The following parts were replaced: crank sensor, cam sensor, distributor, spark plugs, wires, and ECU. All replaced with Chrysler parts, but done by an independant garage. The local Dodge dealer has also looked at my car through the independant garage and they both can't find what the problem is. The cam and crank sensors have been sycronized and reset under numerous times. Just with that problem alone I have spent close to book value on repairs alone, it makes me wonder what else it could be. I can't afford to spend much more money on this car. I have even called Chrylser and they said to take it to the dealer and the factory engineers will try to troubleshoot it, but the Dodge dealer couldn't even find the problem.

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Talk tgo the dealership about putting the copilot on it...this will enable you to record info for them when the problem is occuring and maybe help solve it instead of guessing

Posted on Dec 29, 2008


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1 Answer

What would cause my 2000 ranger to buck between 45 and 50 mph going up hill

Yea! I'd like to see the answer to this also!
My Ford Explorer 2000 does the same thing going up hill. Especially with a loaded trailer on.
Local mechanic had it for the day and couldn't put his finger on it.
I can alleviate the problem by turning the AUTO Trak knob to 4x4 Hi while driving and the jerking stops.
I'll keep an eye here to see what others think

Feb 15, 2015 | 2000 Ford Ranger SuperCab

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Bucking between 45-50mph usually going up hill. Works fine at any other speed on any terrain.

Have a shop put the scan tool on it & go for a ride up hills
& look at the cylinder misfire counts & you go along,you drive

Never just leave the vehicle,you need to be part of the solution
& get the education

You could replace spark plugs if they are over 3 years old

You need to be able to test,scope or somehow evaluate the
ignition system for misfires

Coils,Modules,Wires, anything can break down in time

Egr System problems,especially on hills, if vacuum is involved

Apr 01, 2014 | 1999 Oldsmobile Silhouette

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I have a 1998 plymouth voyager when going up hill it boggs out and wont go over 20 miles per hr.

Could be a clogged Exhaust Converter. I usually never replace any on my vehicles,even after 17 years. That said, they do fail for various reasons.

A bad EGR Valve would be a common parts failure on all vehicles, and high engine vacuum on a hill, would point that way, if it bucks, as well as slows down.

Then you have ignition problems. All vehicles experience those at some point in time, and a hill would put an electrical load on the system,especially on a hot day.

Iam going to assume the Trans doesn't slip or you see a flair or spike on the Tach, when it slows.

Aug 05, 2010 | 1998 Plymouth Voyager

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Just bought it....seems to run fine, no over-heating or smoking, 232000 miles...paid 400 bucks...owner says it is a daily driver, even occacional long distance test drive,...

Try changing the fuel filter. If it's been there awhile it's probably starting to clog and won't be able to flow enough fuel for the heavier demands the car has when going uphill or trying to accelerate hard.

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2002 VW Jetta Engine "Bucking & Kicking"

my daughter just had a factory recall done on her jetta it was the emission coil. check this out.

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Bucks when it comes to a hill until you kick into it, car serviced regularly.

sounds like u may need spark plug wires replaced, also has the fuel filter been replaced every 30,000 miles as recommended by Buick?

May 08, 2009 | 1991 Buick LeSabre

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