Question about Pontiac Cars & Trucks

Open Question

1993 pontiac transport van wont start without feathering the gas pedal and stalls when you take your foot off the gas

I am working on a van for a family friend, at first the thing would start for a brief moment idle high and stall. the van was loosing power uphills and one day just did not want to start. I removed the Throttle body, cleaned it out, It was extremely gummed up, so the iac sensor was replaced, along with the MAF, and Tps. It also got a new fuel filter put in. So after all that it starts and you can keep it running by feathering the gas but if you let go it stalls right out. I did notice the fuel pump is sounding sluggish, and when I removed the fuel filter, the feed line coming poured out varnished gas along with some black gunk...almost like broken down hose. The van has been sitting for a year....also the tube that feeds from the egr valve to the upper intake is missing a connection that is making it loose, but I pushed it into place while the owner started it and kept it alive, it back fires through this sometimes...just trying to give all the info I have I know its long winded. Also the battery was dead, but we charged it and it starts the car but died after playing with it, the OBD 1 codes that came up with the new parts on were 34 and 21...MAF and TPS? Any advice would be awesome, the engine is a 3.8

Posted by on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Ad
csmock132
  • 4669 Answers

SOURCE: 1989 GMC 2500 5.7L - engine surges and stalls at idle. Loses power at cruising speed.

Wow you have replaced a lot of stuff. Lets go back to the Fuel pump. When you replaced it did you replace the hose between the pump and the sending unit. These are common for splitting. Have you hooked up a fuel pressure gauge to check what pressure you have? It should be real close to 13 psi and should raise to at least 18 or 19 when you pinch off the return line.

Posted on Jun 02, 2009

Ad
  • 15 Answers

SOURCE: 1995 safari van w stalls when giving it gas.

maybe your iac valve is not working? it takes place of a choke or temp sender to computer could be bad which controls t I.A.C. known as the idle control valve,do you have any codes?

Posted on Sep 01, 2009

  • 87 Answers

SOURCE: 1995 sarari van stalls. replaced fuel pump

when you shut the truck off is/was there a swishing/bubbling noise coming from the tank?

Theres an orange rubber in the fuel tank that connects the fuel pump to the sender lines. if that rubber is torn you may get it to run but not stay running for more than a short period of time.

Posted on Oct 26, 2009

  • 11 Answers

SOURCE: starts/stalls won't run until pedal tapped, 2

Check your IAC motor (Idle Air Control) It could be sticking open.
Ps. Might be called Idle Speed Control motor it depends on the make and i forget what chevy calls theres.

Posted on Mar 11, 2010

  • 3640 Answers

SOURCE: car stalls and dies, will stay running if keep

sounds like a vacuum leak at the manifold. spray wd40 or simillar around manifold to check for leaks. if you find a leak, engine will flare up.

Posted on May 14, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

What causes my van to keep stalling


Have you changed the fuel filter? Possibly restricted. Check engine light on? Scan for codes that may pertain to this issue. Possible throttle position sensor or throttle actuator.

Dec 21, 2015 | 2003 Ford Windstar

1 Answer

96 crown Victoria wont start had the problem couple weeks ago guy said the idle control was off now I guess doing it again I cleaned it but still wont turn over


When you say it wont turn over that implies that you can not hear the starter turning the engine over. If you can hear the starter cranking the engine over but the engine will not start try holding the gas pedal to the floor. Be prepared for the engine to start and let off the gas. If the engine stalls when you let off the gas try starting again but feather the gas pedal after it starts. It it stays running with the pedal depressed than I would agree that there is an issue with the IAC and it may need to be replaced.

Jul 31, 2013 | Cars & Trucks

2 Answers

2000 gmc serria wont stay running unless you feather the gas pedal after a minute or so it will be fine after it warms up it runs great


you have a bad idle air control valve and also a thottle position sensor. both sensors are located on the throttle body

Nov 25, 2012 | 2000 GMC Sierra

1 Answer

NISSAN CEDRIC 2001, ENGIN STOPS WHEN PRESS BRAKE PEDDEL


There are few possibilities that can cause such problem.
I recommend you few help links related to your problem.Click the link below and follow the troubleshooting;-----Idles rough and quits when gas pedal is pressed less? http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html-----------
Brake pedal stuck? http://howtobyme.blogspot.in/2012/03/brake-pedal-stuck.html

-------------
Car only starts when gas pedal is pressed? http://technoanswers.blogspot.com/2012/01/car-only-starts-when-gas-pedal-is.html

----------
Car won't start without hitting the gas pedal? http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-without-hitting-gas.html

----------
emits whitish bluish smoke and bad fuel smell from exhaust

http://schematicsdiagram.blogspot.com/2011/12/van-emits-whitish-bluish-smoke-and-bad.html

----------
White smoke and Acrid Smell? http://whoisbyme.blogspot.in/2012/07/white-smoke-and-acrid-smell.html
---------- Car stalls and throws white smoke from exhaust? http://repairhelpcenter.blogspot.com/2012/01/car-stalls-and-throws-white-smoke-from.html

-----------
This will help.
Thanks.

Jul 20, 2012 | Cars & Trucks

1 Answer

Where is fuel filter located on 1993 pontiac transport


under van next to frame rail about 1 foot behind drivers side door

Jan 13, 2011 | 1993 Pontiac Trans Sport

1 Answer

97 Pontiac Transport stalling


i think its your o-2 sensor do you have bad gas milage?you should have the van put on the computer at your local garage. there is two input, output.they cost about 80 bucks each and are avalable at most part stores

Apr 29, 2010 | 1997 Pontiac Trans Sport

1 Answer

Car dies when gas is pressed.


I suspect the throttle position sensor, does the engine keep running if you take your foot off the gas before it dies? Like you can keep stabbing at the pedal and make the engine barely run but keep going so long as you take your foot off at the right time, if so it's the throttle position sensor not working AT ALL... (TPS) - http://www.rockauto.com/catalog/raframecatalog.php?catalog=903&partnum=5S5050&a=UK903-5S5050 this is the part, its on the throttle body, you can check the cabling first make sure it's not just come loose (unplug and replug a few times and try the engine again)- If no difference then buy the part and fit it, one out one in. and I'd look for a cheaper price (around $40) this is just to show you what to look for on the throttle body.

Jan 26, 2010 | 1993 Pontiac Grand Am

1 Answer

Bad gas van wont run


undo fuel pipe where it exits the fuel pressure regulater and turn engine over , use bucket and rag to catch pumped fuel , do this for half gallon and reconnect ,, then take spark plugs out and clean with easy start (eather) and replace , should start fine now ,

Jun 05, 2009 | 1995 Pontiac Trans Sport

1 Answer

Mx6 not running right


there is an idle valve on the throttle body. it opens to keep a cold engine running, then closes when the engine warms up. if it sticks open, car will run good for a few seconds then stall the warmer it gets

May 27, 2009 | 1993 Mazda MX-6

2 Answers

Wont hold idle will start with foot depressing gas pedal will run with foot on gas but stalls when foot removed


Check and clean Idle air control valve. Make sure its responding to signal as well. Also make sure ther are no vacuum hoses disconnected. This may not be a "cure" but it's a good place to start.

Apr 14, 2009 | 2001 Jeep Grand Cherokee

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

Related Topics:

25 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8274 Answers

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

Answer questions

Manuals & User Guides

Loading...