20 Most Recent 2003 Toyota Tundra Questions & Answers

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Dose my 2003 tundra 4.7 V8 have a low oil pressure shut down mode?

Do not think so, have replaced couple engines on tundras for running low or no oil....so tehori dismissed.
11/13/2019 12:06:23 AM • 2003 Toyota... • Answered on Nov 13, 2019
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How to change a rear differential cover on a 2003 toyota tundra?

The differential cover is welded on, and Dorman products makes a better than original product. 926-958-007-kvyxpa5frf3bpu1xntknxd4k-4-0.jpg
6/22/2019 10:36:23 PM • 2003 Toyota... • Answered on Jun 22, 2019
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Replace brake light o3 tundra stepside

The best solution you'll get from books at www.reliable-store.com These are books containing info on repair, service, troubleshooting, parts info, assembling dissemble, removal, error/fault codes, wiring diagrams and everything on any vehicles cars, atv, trucks. forklifts, boats, excavators etc
6/14/2018 3:09:36 PM • 2003 Toyota... • Answered on Jun 14, 2018
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Have code P2238 - what could be the cause ?

code p 2238 has 3 references heated oxygen sensor(HO2S) 1 bank 1,positive current control---circuit low ====causes ---wiring short to ground ---HO2S second reference oxygen sensor (O2S) 1 bank 1 positive current---circuit low====causes ---wiring short to ground ---O2S 3rd reference HO2S 1 bank 1--implausible signal===causes ---wiring---short to positive ---short to ground ---HO2S---ECM as the heated oxygen sensor is common with wiring problems indicated , maybe changing it will fix the code note HO2S is the sensor in the exhaust manifold in bank1 before the cat converter
10/13/2016 1:54:44 AM • 2003 Toyota... • Answered on Oct 13, 2016
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Have a code P1138 on 2003 Toyota Tundra - how do I fix ?

Swirl Control Valve Control System Performance Repair Importance Level: 3/3 Repair Difficulty Level: 2/3 Possible causes - Faulty Swirl Control Valve Control Position Sensor - Swirl Control Valve Control Position Sensor harness is open or shorted - Swirl Control Valve Control Position Sensor circuit poor electrical connection - Faulty Swirl Control Valve What does this mean? Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) P1138 Description While idling and during low engine coolant temperature, the swirl control valve closes, Thus the velocity of the air in the intake passage increases, promoting the vaporization of the fuel and producing a swirl in the combustion chamber. Because of this operation, this system tends to increase the burning speed of the gas mixture, improve fuel consumption, and increase the stability in running conditions. Also, except when idling and during low engine coolant temperature, this system opens the swirl control valve. In this condition, this system tends to increase power by improving intake efficiency via reduction of intake flow resistance, intake flow. The swirl control valve is operated by the Engine Control Module (ECM).

Read more: http://www.autocodes.com/p1138.html
10/3/2016 6:19:02 AM • 2003 Toyota... • Answered on Oct 03, 2016
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How to check a coil pack with a multimeter

Th?r? is two thing to check... Primary Coil r?sistance and secondary. The primary is checked by measuring the ohms between the positive and n?gative terminal. And the secondary is by using the positive lead and the spark plug connector. On Toyota cars the tol?rance is 15%. Check all your coils with your multimeter on ohms and the one that your values are completely off the others is your d?fective Coil.
7/20/2016 3:23:03 PM • 2003 Toyota... • Answered on Jul 20, 2016
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Spark plug wiring diagram 2003 Toyota Tundra

Here's a link to your firing order, Specifications Firing Order AutoZone com
7/22/2015 12:53:46 AM • 2003 Toyota... • Answered on Jul 22, 2015
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My mom has a 2003 Toyota Tundra the radio clocks and the charger outlets all went out at the same time can it be a fuse

YES,CHECK THE FUSE BOX AT DRIVER SIDE,DID YOU PUT A RADAR DETECTOR IN THE LIGHTER,IF SO,THEN THE FUSE BLEW,HAPPENED TO MY 2004 TUNDRA.THE LIGHTER OUTLET IS FOR LIGHTER ONLY.
3/10/2015 1:17:32 AM • 2003 Toyota... • Answered on Mar 10, 2015
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2003 toyota tundra door ajar light stays on

Usually a problem with the sensor in one of the door latches.
2/16/2015 9:56:22 PM • 2003 Toyota... • Answered on Feb 16, 2015
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How do i fix my door ajar light

First, ensure that your door does fully close and latch. Then tape a penny on the door at the spot where the plunger switch hits it to make it disengage.
2/16/2015 3:38:07 PM • 2003 Toyota... • Answered on Feb 16, 2015
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How do I replace the seal on the front differentail of a 2003 tundra

First you must mark the position of the big nut with a small chisel so you can get it back the same as it now is. Count the number of threads showing beyond the face of the nut. Remove driveshaft and lock the yoke in place using a big pipe wrench or something similar with a pipe over the end wedged against the ground or truck frame. Use an air gun if possible to loosen the nut. A breaker bar and cheater pipe may also be used. Remove yoke with drain pan underneath to catch fluid. Carefully pry old seal out (there are special tools made for this, but a big screwdriver will work if you are careful not to damage the area the seal rides in. Put some gear oil or grease inside the lip of the new seal and install it using a seal driver or big socket being carefull not to damage seal. Clean yoke and reinstall. Put some RTVunder big washer to prevent leaks and reinstall nut. Tighten it untill same # of threads show as when begun and marks you made with chisel line up. Top up fluid lost, reinstall driveshaft and done. One other thing, I usually mark the driveshaft and yoke to put them back as they were lined up.
2/13/2015 10:51:57 PM • 2003 Toyota... • Answered on Feb 13, 2015
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How do you search for codes

me? no symptoms posted, post the good and bad,or ugly then and only then is a pictured formed, that points to smart testing. codes, i guess you mean how to use a scan tool? any modern tool will work on your car, even cheap ones. use a reals scan tool ,code readers or for kids. (and the blind ) by blind that means,it blinds you (ham strung) so you picked the most expensive and hard nasty job first. why do millions do that? for a $20 pressure gauge. sad. we can fix it, but you never posted symptoms. here, open a text file on desktop then type all the good and bad things it does cut (Control C) and paste it here. that way you have a record of problem and guessed parts. so you can post on any forum and not type it 10 times. yes , beg /barrow, rent /buy a scan tool the scan it. or have any shop do that for free. if it still can move... does it?
2/12/2015 4:26:49 PM • 2003 Toyota... • Answered on Feb 12, 2015
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2003 Toyota Tundra upper ball joint replacement

Hi Jason,here's a link on replacing your ball joint,join their site,it's free,then you can use their repair guides like me. GET 25 GIFT CARD FOR EVERY 100 SPENT ON ONLINE SHIP TO HOME ORDERS Here's a video that may help too. Ball Joint Removal Separator Toyota Tundra Tie Rods
2/10/2015 3:49:48 PM • 2003 Toyota... • Answered on Feb 10, 2015
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2003 tundra ltd, six original speakers, any limit on how powerful aftermarket radio to buy?

short answer? no...they won't
1/27/2015 2:36:40 AM • 2003 Toyota... • Answered on Jan 27, 2015
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2003 toyota tundra having issues with o-rings after engine belt replaced plenty of cab heat, circulation, no overheating,lower radiator hose cold even after driving it.

you never stated a problem, just actions. just o-ring issues, like what? did you burp the system of all air, most DIY fail here.
1/18/2015 5:04:36 PM • 2003 Toyota... • Answered on Jan 18, 2015
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