Question about 1998 GMC Safari

1 Answer

DTC code P0420 and P0452 98 GMC SAFARI

OK i am between the sword and a thick and tall wall! my Dad is trying to fix this van and we don't have a scan tool and y barely have tools, my dad used to work in a smog check and thinks he is a teen, he now tell me he charged to fix this van and he has not done anything to fix it, i lost my job my mechanic skills are not good, and were living in Tj y have no way to go whit friends whit scan tool to help me out, till now all i can do is go to local auto zone so they can scan codes but thats it, they wont reset, i already fixed the gas cap, don't know how to test th FTP or have money to replace it, i pulled down the gas tank 3 times to check for leaks, canister, there is some type of injector close to it that does not do anithing, i pilled the the oxigen sensor for bank 1 the first one fron engine to cat, played whit timing turning distr, those codes dont seem to go away, i dont know what to do, please help

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I just went through this on my 98 safari. P0420 scanned catylist deficiency. I changed my fuel filter. Took about 30 mins. lost minamal fuel amounts. Part cost: $7.00. This fixed mine.Didn't need to jack it up. You can if need be. Takes 2 wrenches, 1 small socket, filter, and drip pan. All pretty much self explanitory, once you find the filter. Nothing will blow up, just be careful, and don't smoke anywhere near it. As for clearing the code...I don't know. I have a scanner that I used. As for the P452 code. Don't know anything about that. Hope this helps.

Posted on Apr 21, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 98 safari van that has been put on a scanner which the codes read: P0420(catalyst system efficiency below threshold-bank1), P0452(evaporative emission control system pressure sensor low imput) and...


You may need a mechanic. At least a shop manual.
The catalytic converter code means the computer does not think the cat is working right based on input from the O2 sensors. That data would need to be checked out and verified along with a temp scan of the cat itself.
The other two codes are saying the signal from the pressure sensor is too high and too low. The computer measures pressure inside the gas tank to make sure it vents correctly. The pressure sensor could be faulty, or it could be something else in the venting system.

Mar 09, 2014 | GMC Safari Cars & Trucks

1 Answer

Break light stayed on after changing break pads GMC safari van


You may just need to have the code cleared. If you have a reader that will erase or reset dtc codes thats all it will take. some codes will reset just by doing a few drive cycles but other codes need to be cleared. There are a lot of places that will read or reset the codes for free if you don;t have a reader. That would also give you a chance to see if there are other problems such as brake pad sensors that are also part of the problem.

Jul 27, 2012 | 2005 GMC Safari

2 Answers

Where are the ground wires for the ecbm gmc safari 2005


Diagnostic Test Code (DTC) C0265 is a POWER circuit code for the EBCM/Pump Motor Relay, not a ground code. This DTC sets when the voltage (B+) is too low at the EBCM when the solenoids and pump motor are commanded OFF. The voltage is supposed to be pulled low when the circuit is commanded ON. A ground problem with the EBCM is most likely to cause a failure of the EBCM to communicate with a scan tool. However, it doesn't hurt anything to check the ground. The main ground for the EBCM (G106) is located on the left rear of the engine near the knock sensor.

Jun 02, 2012 | 2005 GMC Safari

2 Answers

Check engine light came on my wife's Safari GMC van.


Need to put a Tech II or a scan tool to identify what is setting the code. Autozone does this for free.

Oct 04, 2010 | 1998 GMC Safari

2 Answers

Can I used parts from an older model GMC Safari cargo van (2002-1998) to fix up my 2003 Safari Cargo van? Thanks for your time!


whats a safari GMC?? just shows you how much i know ---- never seen one but if it fits then your ok ,sorry but very rare machines here in spain ,now ask me about a renault or a peugeot

Jul 15, 2010 | 2003 GMC Safari

1 Answer

My 1999 safari van Service Engine Soon light on


you need to find out if there is any code stored in the vehicle's computer. ask your mechanic to hook up the scan tool to it.
if he does not have a scan tool then he should not working on your vehicle.
you can go to ant parts store to have it check for code for free. this is the first step you should do

Mar 07, 2010 | 1999 GMC Safari

1 Answer

1999 safari van 4.3 6 cyl. has a service code PO


P0301 is a DTC code that indicates a misfire to cylinder one. It could be a bad spark plug, spark plug wire, rotor and cap, a dirty fuel injector, or the worst a bad head gasket. Cylinder 1 is the first cylinder on the drivers side, towards the front. Start with the simple and check the spark plug wire and add fuel injector cleaner to the gas tank. Good luck and hope this helps you get you van running 100% soon. If that did not help, then your going to have to do a tune up by replacing the spark plugs, wires and rotor and cap. You can get all the parts you need at Auto Zone and they can give you the step by step to get the job done with common tools in under 2 hours of your time. Keep me posted, be glad to know you got your van running 100% again soon.

Oct 27, 2009 | 1999 GMC Safari

1 Answer

2004 GMC Safari van


DO'ES THE VAN TURN OVER ? DO'ES THE VAN HAVE THE FUEL PUMP RUN LONG ENOUGH TO BUILD FUEL PRESSURE?IF YOUR FUEL PUMP AND STARTER ARE WORKING THEN CHECK FOR FIRE TO THE PLUGS. YOU MAY NEED TO GET THE CODES READ TO FIND THE PROBLEM IF YOU HAVE FUEL AND FIRE.ONCE YOU GET THE STORED CODES,REPLACE THE SENDER THAT CAUSED THE CODE OR REPAIR THE WIREING TO IT.

Oct 06, 2009 | 2004 GMC Safari

1 Answer

Getting DTC code P0404 and P0420. What should I do?


The 420 will not go away with egr replacement. it means the computer has detected a problem with the catalytic converter. eGR valve is at the rear of the engine. Not easy to get to on vans.

May 05, 2009 | Oldsmobile Silhouette Cars & Trucks

1 Answer

My dad is having trouble starting his 95 GMC Safari Conversion van after it has been running. After setting overnight the van starts right up. If he runs a short errand, turns it off, then tries to start...


My 1997 safari was doing the same. After being shut off for a short period of time it started as if it was flooded. If I put the accelerator to the floor it would fire up. As well, I had no engine codes to report. I replaced the fuel pressure regulator and everything is great. It was leaking fuel into the engine causing it to act flooded when starting. Once started, the computer system made adjustments for the leaking fuel so the engine ran fine. If you turn the van off and immediately try to start it, it should fire up. (don't give it time to leak extra fuel into the engine)

Jul 31, 2008 | 1997 GMC Safari

Not finding what you are looking for?
1998 GMC Safari Logo

Related Topics:

1,040 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

60792 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

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

Answer questions

Manuals & User Guides

Loading...