Question about Jeep TJ

Open Question

Just got the P0320 and P0420 code on my 1997 jeep wrangler 4 cylinder yesterday. are these serious and should they be fixed soon or can i wait a week or 2

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 3 Answers

SOURCE: 1997 Jeep wrangler

take it to a mechanic if you air bag is messing up you should have it fixed immediatly

Posted on Aug 19, 2008

Ad
  • 41 Answers

SOURCE: P0420 2003 Jeep Grand Cherokee 4.0 6cyl

This code is a catalyst efficiency code. The catalytic converter is most likely the problem, but it could still be caused by a defective oxygen sensor. The easiest way I know to check for this code is with a scan tool that is capable of reading live data stream. You need to look at the upstream and downstream oxygen sensors, and see if they are mirroring each other. In other words, if the upstream (the one before the catalytic converter) is reading .700, and the downstream ( the one behind the catalytic converter) is reading .700, or anywhere near that, then you have a problem. The numbers are just examples. The upstream should constantly swith from high to low voltage. If the downstream is identical, or even remotely close to having the same reading as the upstream, then you most likely have a defective catalytic converter. This does correspond to what happened a couple of weeks back. A misfire will take out a catalytic converter if not repaired quickly. Also, if you had a converter that was marginal, and was close to failure, then that misfire may have been just what it needed to fail.

Posted on Nov 10, 2008

  • 74 Answers

SOURCE: 1997 Jeep wrangler

Clock spring mech is prob bad, first easy check is remove airbag 2 8mm bolt from back side of wheel make sure wires are still connected if they are good the clock spring mech is bad you can use a steering wheel puller to remove wheel and clock spring mech just snaps out and has 2 plugs on it, I have 2 if you need one.

Posted on Nov 18, 2008

  • 108 Answers

SOURCE: Jeep Wrangler 6 cyl. idles up and down

Have your oxygen sensor checked, one of the symptoms of a faulty oxygen is an up and down idle.

Posted on May 04, 2009

redbeard00
  • 957 Answers

SOURCE: how do i bleed the master clutch cylinder system on a 1995 jeep ?

A special pump is used to back bleed the system. If you don't own one then you have to be patient and just keep pumping the clutch pedal until it comes back. It can take a half hour to get it back. Just depents on how much air is inside.

Posted on Jun 16, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

WHAT ARE CODES PO330 AND PO320 CTS 2006 CADILAC


I use this website all the time:
https://www.obd-codes.com/p0320
https://www.obd-codes.com/p0330
https://www.obd-codes.com/p0420
https://www.obd-codes.com/p0430

Now the art is knowing how to interpret, the P0320 and P0330 can set off your P0420 and P0430 oxygen sensor codes. I would address the P0320 and P0330 first and probably the O2 sensor stuff will probably go away. If your car is knocking, rough idle, loses power, etc. then the 300 codes make sense and you have issues. It could also be two separate issues were damaged wiring on the knock sensors and then a damaged catalytic converter. I've got a car that constantly throws up 420 and 430 codes because the catalytic converter got dinged up from running something other.

Apr 17, 2015 | 2006 Cadillac CTS

1 Answer

2005 Jeep Wrangler Heater and Cigarette Lighters won't work


seriously I would be making a jumper wire to the battery for the blower .. power it directly..as long as you put a fuse in the line..and an on-off switch..

Jan 03, 2014 | 2005 Volkswagen Jetta

1 Answer

P0300, P0305, P0306, P0320, P1491


Yes, most probably a new crank position sensor will solve your stalling problem. I would change that sensor first and then see if you still get other fault codes. The fan continuously running will reduce the lifetime of the fan and will lower the mpg. I would change the relay.

Aug 19, 2013 | 2004 Jeep Grand Cherokee

1 Answer

P0300, P0305, P0306, P0320, P1491


Not necessarily, you will just have to unplug it. The fan relay switch isn't that expensive so you should if you can. The multiple misfires usually means that you need a tune-up with plugs,coils and some sensors when required.

Aug 19, 2013 | 2004 Jeep Grand Cherokee

1 Answer

1997 jee[ wrangler 4 cylinder, sputters when driving especially when you hit a bump.


Check the engine ground wire. Mine gave the same symptom, wire had come loose.

Aug 26, 2010 | 1997 Jeep Wrangler

1 Answer

I have two fault codes, P0302, P0420


P0302 is cylinder 2 not contributing. I could be a bad spark plug or injecor.

P0420 is catalytic converter issue. I could be because of the cylinder 2 failure.

Jan 22, 2010 | 1997 Nissan Pathfinder

2 Answers

I've owned two 1997 Jeep Wranglers and eventually they both shared a common problem of rough idle, low fuel mileage, check engine light and and rough acceleration. Sometimes it would run fine but sometimes...


Hi,
This is a broad spectrum of possibilities. I would first start with a simple approach of insuring good gas.
When these symptoms occur, get a bottle of fuel additive and add to your tank. Possibly you have some condensation issues. This could be just the ticket... I hope so. Good luck.

Oct 23, 2009 | 1997 Jeep Wrangler

1 Answer

97 Jeep wrangler 4 cylinder manual. When in


Sounds like a bearing issue too me. Have your transmission shop take a listen.

Oct 20, 2009 | 1997 Jeep Wrangler

1 Answer

Check Engine Light


Your diagnostic about this CODE is:

Generic P-Code DRB Scan Tool Display Brief Description of DTC
P0171 (M) 1/1 Fuel System Lean A lean air/fuel mixture has been indicated by an abnormally rich correction factor.
P0320 (M) No Crank Reference Signal at PCM No reference signal (crankshaft position sensor) detected during engine cranking. P0320 (M) No RPM Signal to PCM (Crankshaft Position Sensor Signal to JTEC) A CKP signal has not been detected at th
For more details, you can visit the obd_dtc_jeep

Good luck, and rated this help.

Aug 11, 2009 | 1997 Jeep Grand Cherokee

1 Answer

Cylinder 1 misfire


Thought I answered this but don't see my post...#1 is the one closest to the radiator end. Next one towards the back is #2, etc.

Mar 20, 2009 | 1997 Jeep Wrangler

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

280 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

Marvin
Marvin

Level 3 Expert

85206 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22484 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

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

Answer questions

Manuals & User Guides

Loading...