Question about 1996 Jeep Grand Cherokee

2 Answers

I loose power on hills and during heavy exceleration

I had the cat. converter replaced and ever since then when you excelerate hard going up a hill or flat ground for that matter I loose power and the check engine light comes on. It runs great around town at lower speeds but acts up when trying to reach freeway speeds or pull a hill. I had the converter checked and o2 sensors checked and they said everything was ok. Any Idea's?

Posted by on

  • kennethlefeb Nov 19, 2008

    Sorry this web site got me a little confused and I posted a clarification answer as a solution.

  • lesterallen May 11, 2010

    I'm wondering why the catalytic converter was replaced.



2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.

    New Friend:

    An expert that has 1 follower.

  • Expert
  • 109 Answers

Great reason to replace the converter! I would be wondering about the Oxygen Sensors but you have already thought of that. I'll get back to this when my brain wakes up.

Posted on Nov 19, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I replaced the converter because it had fallen apart internally and was making noise.

Posted on Nov 19, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

No power on exceleration smells like gas hs a hard time pulling hills 94 saturn sohc 1.9

Start by replacing the air filter and checking the operation of the fuel pressure regulator. Have the stored codes read out of your ECU, either by an auto parts store or a local mechanic, in order to ascertain a starting point for diagnosis.

May 08, 2015 | Saturn Cars & Trucks

1 Answer

I have a 1999 ford contour...running power...chug chug chug...engine lighrt on..only code it is throwing is for the egr valve...when you have to excelerate up a hill it has no

EGR (exhaust gas recirculation) valve may be stopped up with carbons. This would account for some loss of power as well as odor if leaking around intake. If I remember correctly, egr tube originates just above catalytic converter on this model. Condition may be early signs of cat failure ( commonly accompanied by "rotten egg" odor). I recommend having emission system checked by certified tech to avoid uneccessary component replacement.

Sep 27, 2012 | 1999 Ford Contour

1 Answer

05 cobalt exaust overheats

The mixture may be to rich. When you say hot is to hot what does the means to you? The cat converter and pipes near it can reach 1000 degrees F. That is really hot. It gets hotter under a heavy load such as pulling a hill or hard acceleration.

Jun 29, 2012 | 2005 Chevrolet Cobalt

1 Answer

99 frontier feels like the engine is holding back when going up hill

Sounds like your catalytic converter may be clogged.Have the exhuast pressure tested and look at the cat after a hard pull uphill and see if its turning redish or changing color.

Jan 17, 2012 | 1999 Nissan Frontier

1 Answer

The car runs good but when you are not accelerating or decellerating it pings

Cars ping on hard exceleration or light/medium exceleration up hill or from take off but not at idle or declerating. I would check belt on front of engine and remove it to check alternator, water pump, power steering pump, a/c compressor clutch, idler/tensioner pullies for excessive play. Also check for exhaust leaks because sometimes they may sound like a ping and another thing you might want check is the catalytic convertor, the elment inside will come loose and rattle and this is notice more at idle and on a decel. If you tap catalytic convertor with hammer and you hear a rattle then replace catalytic convertor.

Dec 18, 2011 | 1991 Buick Skylark

1 Answer

1999 toyota tacoma has developed a nasty miss but only when excelerating

There are several problems regarding a misfiring engine. You can try checking all the spark plugs and seeing if they are good . Check the Spark Plug wires for any breaks or loose fit. If possible get a code at Autozone or other autoparts store. they do it for free. Because it could be a simple sensor problem Such as the Crankshaft position sensor, O2 sensor etc.
By eliminating the electrical ignition problems you can start to troubleshoot the fuel. Check all filters (ie: fuel filter, air filter, etc.)

Nov 27, 2011 | 1999 Toyota Tacoma PreRunner

2 Answers

Have to push excelerator pedel hard to floor when vehicle hits a hill at 50 mph to get it to change down

its not changing down because it doesnt need to ,what year and what model is this vehicle ,petrol or diesel

Apr 10, 2011 | Land Rover Range Rover Cars & Trucks

1 Answer

My 2005 ford freestyle sputters when i excelerate harder than normal and when i go up a steep sounds like a back fire but through the air filter instead of the tail drives great when i just...

Your vehicle symtoms indicate that you might have a timing issue . It could be caused by a vacuum leak, or even the egr valve , since it only happens under load.

Do you ever get a check engine light? If so, scanning the vehicle would give some clues to the cause too.
If not, I would first look over all accessable hoses for cracks or loose connections, and then have the engine timing checked. Hopefully you will work towards a good fix.

Jan 31, 2010 | 2005 Ford Freestyle

2 Answers

Loss of engine power and difficult to start

two things come to mind

1 fuel injectors are gummed up. get some berrymans chemtool and put it in the tank do it twice.

2 I had a ford ranger that had the same symptoms after warping two heads the mechanic discovered that the catayitic converter was blocked

Jul 12, 2008 | 2002 GMC Envoy

Not finding what you are looking for?
1996 Jeep Grand Cherokee Logo

340 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

78010 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides