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Should i change throttle body or clean connection

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  • Cars & Trucks Master
  • 2,460 Answers

Clean out the throttle body . I use a lint free damp cloth damped with carby cleaner . Don't let any fluid find its way into the TPS. it is good practice to check the switch with a OHMS meter at this time , connect the meter to the switch, slowly open and close the throttle , there must be a ever movement of the meter if it flicks or jumps replace it. If there is any movement in the housing of the butterfly shaft replace it.

Posted on Apr 03, 2015

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  • Cars & Trucks Master
  • 2,039 Answers

Why you want to change it

Posted on Apr 03, 2015

  • 3 more comments 
  • john Swope Apr 03, 2015

    Idk wat to do

  • john Swope Apr 03, 2015

    Wats wrong with throttle. Body

  • pierre laplante Apr 03, 2015

    whats your question whats wroung with your vehicule

  • john Swope Apr 03, 2015

    Only revs 2k rpms.eml light on.99bmw 323

  • pierre laplante Apr 03, 2015

    when a trottle body is defective you have no power clean it first the inside with intake cleaner and a rag

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Posted on Jan 02, 2017

  • 4793 Answers

SOURCE: how do you clean a throttle body on 1999 s70?

try this b4 taking things apart... redexe/wynns fuel additive and using high octane fuel the computer will adjust running accordingly...

Posted on Mar 09, 2010

SOURCE: Location of the Throttle Body on 2008 toyota rav 4

Hi harry, the throttle body is the part mounted onto the intake manifold and is held in place by four bolts and nuts. One side fits onto the metal of the manifold with a gasket between, and the other side has the rubber ducting from the air cleaner. The throttle cable and kickdown cable are fitted to it. On the other side of the throttle body is the throttle position sensor. Do not carry out any adjustments to it. Cover it with a plastic bag and do not allow any cleaning fluid to contaminate it! Resetting the sensor requires special adjustments and very careful settings and can stop the engine from starting once refitted. Regards John

Posted on Oct 27, 2012

bogdanodwazn
  • 5678 Answers

SOURCE: 2007 4.2L Saab misfire under load. changed plugs and coils.

tune up.

Posted on Mar 03, 2013

nobody322
  • 20706 Answers

SOURCE: idles rough,run ok at road speed misses occasionally

hot engine , cold or both? is hot idle speed at spec RPM?
no engine stated, so all answer go to generic, see?
4.0L I-6, one of 5 million? USA car , not the export?
skipped air filter and fuel filter, why? its part of the tune up.

that is called misfire.
I use a scan tool , first to find misfire,
even a 10 buck tool works on all 1996 USA cars, no need for the $200 tool, unless you have newer cars..
its not vacuum lines, leaking, as that makes engine only race.
but if the vacuum is lost to some devices, that sure is bad.
I already tossed coin landed on 4.0L for you.
it runs via a mAP sensor and air leaks with MAP systems, make full power and race with any air leaks at all.
(study Speed Density EFI systems)

if you suspect the front 02 as bad, or exhaust leaks near it.
unplug it, that cure the misfire?
misfire :
1: bad spark.? gap plugs wrong? bad coil?
2: bad fueling,. is it running rich? spark tips black, wet or oil soaked or antifreeze soak, yes , learn to read spark tips, works for 100 years. now. this easy simple test.
white to light tan/light gray is best. on all tips.


so it misfire parked in neutral, boy that makes this easy, huh?
fix easy first and hope for better ? hot engine, misfire. 101
1: i connect scan tool, oops DTC aplenty, need i say more. NO.
2: i then have no DTC errors. so is ECT reading 180F or more, if not fix that now.
3: i then look at all sensors. live data stream. (all PIDS)
i see all read right. but 02 , LTFT and closed loop busted.
if engine fails closed loop at idle i fix that NOW.

see why,? its simple and easy to do parked, is why.
Oxygen sensor front (02):
if the 02 reads wrong, there are some causes. say its stuck at 0v.

  1. it's bad.
  2. the exhaust is cracked near it, yes, it will suck air and make it read wrong on all cars. 1988 to today.
  3. fuel pressure wrong. preventing proper fuel mix.(use a gauge)
  4. EGR stuck open. (low idle speeds?)
  5. burn valves in head, or other issues with engine mech.
  6. map bad, tests are easy ask. (takes only a $10 voltmeter)
  7. injectors leaking, clogged, dead or stuck.
  8. FPR bad. see #3
  9. IAT reads wrong,(grossly)
  10. that is about it. there are others .... ask.

to fix cars, it takes tools : GOT TOOLS?
if not, get it serviced???????

Posted on Mar 31, 2015

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1 Answer

1993 apv lumina not getting any fuel after changing out the throttle body. Everything is connected back to it. Was running before I changed it. Changed because weather corroded it and was sticking.


Take the old throttle body, tip it up so you can see the circle flap that controls air flow, if it's black and dirty, pick up a can of brake cleaner and a toothbrush and spray the brake clean inside onto the flap and use the toothbrush to clean away all the gunk. This will prevent it from sticking, and possibly get your money back for the throttle body you purchased.

Aug 16, 2016 | 1993 Chevrolet Lumina

1 Answer

Throttle body sensor location 2005 uplander


the sensor is part of the throttle body and not replaceable here is the throttle body replacement instructions as you will have to replace the entire throttle body it is a very common issue with these
THROTTLE BODY ASSEMBLY REPLACEMENT

REMOVAL PROCEDURE
  1. Remove the air cleaner intake duct.
120434113
  1. Disconnect the electronic throttle control (ETC) electrical connector (1) from the throttle body (2).
113356645
  1. Remove the heater pipe nut at the throttle body.
  2. Remove only the heater inlet pipe.
113356646
  1. Remove the nuts and the bolts from the throttle body.
  2. Remove the throttle body assembly.
  3. Remove the throttle body gasket.
  4. Clean and inspect the throttle body gasket mating surfaces.
NOTE: Do not use solvent of any type when cleaning the gasket surfaces on the intake manifold and the throttle body assembly, as damage to the gasket surfaces and throttle body assembly may result.

Use care in cleaning the gasket surfaces on the intake manifold and the throttle body assembly, as sharp tools may damage the gasket surfaces.

INSTALLATION PROCEDURE
113356646
  1. Install a new gasket, if necessary.
  2. Install the throttle body assembly.
  3. Install the throttle body nuts and the bolts.
NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the nuts and the bolts to 10 N.m (89 lb in) .
113356645
  1. Install the heater inlet pipe.
  2. Install the heater pipe nut to the throttle body.
Tighten the nut to 25 N.m (18 lb ft) .
120434113
  1. Connect the ETC electrical connector (1) to the throttle body (2).
  2. Install the air cleaner intake duct.

Feb 03, 2014 | 2005 Chevrolet Uplander

1 Answer

My 2004 X-Type suddenly went into 'Limp Home Mode' displayed 'engine fault' and 'gearbox fault' After pulling off the road I shut off the engine and remove the key and wait about...


Having a restoration shop and running several newer Jaguars I have seen similar situations. Intermittent multiple errors such as these can be caused by a low battery (or corroded connections) that "fool the computers". Also had a '99 XJ8 VDP have exactly the same issues over several months. Issue was a manufacturing fault in the sensors on the throttle body that caused the "limp home" mode - usually in stop and go traffic. Jaguar had an inspection and recall on the throttle bodies but that vehicle had gone through 3 different Jaguar dealers for service and none looked at TSB/Recall or performed the necessary checks on the throttle body. Tried cleaning the throttle several times (per Jaguar TSBs) but no change. Had to replace throttle body & problem solved (over 30,000 miles since then). Recommend making sure all air connections to throttle are clean and open and cleaning the throttle area to see if that helps.

On newer Jaguars (and other Al bodied cars) similar problems occur when the "ground" connections to the body become poor (usually through corrosion but sometimes through collisions). Connections may look perfectly normal but have high resistance. Careful when working with the connections - the posts are usually very loosely fastened to the bodies. The engine quit on a 2005 XJ8 VDP when I turned the wipers on (fortunately I was driving slow in a parking lot) because one of the forward bulkhead ground connections was corroded (looked normal but separated from body when removing the wires to clean them).

Also there occur occasional funny intermittent issues with all newer Jags that seem to be untraceable and non-reproducable computer "glitches".Good luck.

Aug 16, 2017 | 2004 Jaguar X-Type

1 Answer

To: crg_912: 2001 XK8 V* Convertible with 28500 miles car stalls then ABS warning and Traction Control System warning comes on.Also, Complete Enine Failure message' Car goes into limp home mode. When...


Having a restoration shop and running several newer Jaguars I have seen similar situations. Intermittent multiple errors such as these can be caused by a low battery (or corroded connections) that "fool the computers". Also had a '99 XJ8 VDP have exactly the same issues over several months. Issue was a manufacturing fault in the sensors on the throttle body that caused the "limp home" mode - usually in stop and go traffic. Jaguar had an inspection and recall on the throttle bodies but that vehicle had gone through 3 different Jaguar dealers for service and none looked at TSB/Recall or performed the necessary checks on the throttle body. Tried cleaning the throttle several times (per Jaguar TSBs) but no change. Had to replace throttle body & problem solved (over 30,000 miles since then). Recommend making sure all air connections to throttle are clean and open and cleaning the throttle area to see if that helps.

On newer Jaguars (and other Al bodied cars) similar problems occur when the "ground" connections to the body become poor (usually through corrosion but sometimes through collisions). Connections may look perfectly normal but have high resistance. Careful when working with the connections - the posts are usually very loosely fastened to the bodies. Good luck.

Aug 31, 2017 | Jaguar XK8 Cars & Trucks

1 Answer

Chevy trailblazer 2007 P0506 & P1400 what are the solutions for these codes


Cleaning your throttle body should take care of both problems. Clean your throttle body with throttle body cleaner. First disconnect the battery, clean the TB with TB cleaner, must be nice and shiny. When finished, hook the battery back up and drive around for 20 minutes or so with all accessories off, so the computer will relearn a properly functioning throttle body.

Your computer learned some bad habits, so when you changed the battery, the computer thought the throttle body was clean and functioning properly. So when you changed it, this caused all your problems. Very common, keep your throttle body clean, should be done at least once a year. Total cost if you do it yourself is around $5, for the can of TB cleaner.

Apr 18, 2011 | 2006 Chevrolet Trailblazer

1 Answer

Replaced my battery and now when I put On the defroster or A/C the enginr stalls and is running rough. When I stop sometimes the engine surges and car bucks forward. Need some HELP PLEASE!


Very common problem after a battery change. Clean your throttle body with throttle body cleaner. First disconnect the battery, clean the TB with TB cleaner, must be nice and shiny. When finished, hook the battery back up and drive around for 20 minutes or so with all accessories off, so the computer will relearn a properly functioning throttle body.

Your computer learned some bad habits, so when you changed the battery, the computer thought the throttle body was clean and functioning properly. So when you changed it, this caused all your problems. Very common, keep your throttle body clean, should be done at least once a year. Total cost if you do it yourself is around $5, for the can of TB cleaner.

Apr 13, 2011 | 2004 GMC Envoy

1 Answer

Engine gos off when I start A/C on


You probably disconnected the battery recently, or changed the battery. Clean your throttle body, with throttle body cleaner, must be shiny. Do this with the battery disconnected, and all HVAC controls off. When finished connect the battery back up and drive for 5 miles or so, this will reset your computer to read the newly cleaned throttle body correctly now. Problem solved.

Jan 08, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

In extreme cold starts but won't idle well needs to have high rpms to stay running til warm


Try cleaning the throttle body, Remove the intake hose that connects to the intake and air filter box. You will need a can of throttle body cleaner $6. and clean rag. Spray the cleaner in the throttle body and you will see black carbon build up running out of the throttle body. clean the butterfly, which is what opens/closes when the throttle is open or closed inside the throttle body. repeat 2-3 times and wipe it dry and clean with the cloth, be sure not to leave any material inside the throttle body. re-connect what you removed. It will be hard to start for a second, don't worry it's the cleaner. After start up let it run for a minute and test drive. Cheap fix on alot of vehicles.

Jan 06, 2010 | 2001 Chrysler 300M

1 Answer

Rough idle blazer 2000


change air filter.clean throttle plates.remove throttle body remove all electrical parts also all plastics and rubber parts.clean throttle body with gum out throttle body cleaner.dry off throttle body.replace gasket.scan it to check to see if egr valve leaking.also check all vacuum hoses.and pvc valve.

Jul 19, 2009 | 2000 Chevrolet Blazer

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