Question about 1994 Oldsmobile Ninety Eight Regency

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1994 olds 98 3800 engine won't ideal after warmed up.Hold petal to floor start motor,engine runs up and down by it's self with out moving acc. pedal. could this be a TPS?

Repaired a vacum leak that helped, liked i stated b-4 engine races up and down without moving acc. pedal. b

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  • 1,114 Answers

May be the Idle air Control Valve (IAC) . Suggest you do the search for both the TPS and IAC. There's a wealth of info on how to test, clean replace the sensors on the 3.8 engine.

Posted on Mar 21, 2014

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: car slips out of gear after the engine warms up

Ok this is an internal transmission problem, the 1st thing to do is check the fluid level in the trans, do this only on a HOT transmission otherwise you will overfill the trans and damage it more, if the fluid is full and clean then the trans will need to be torn down, but this does sound like a low fluid level problem.

PLEASE RATE THIS SOLUTION, THANKS

Posted on Dec 04, 2008

  • 532 Answers

SOURCE: car running rough, shaking a little under the hood, smell of gas, when i push the gas petal it don't want to move then it slowing do

check the mass air flow sensor in the air breather,it may have fuzz from the air filter on it

Posted on Apr 23, 2009

  • 383 Answers

SOURCE: ck engine light , p1107 code reading ,cant find any vacum leak? olds 88 96 model 3.8 liter.

a3342: Your code is for map sensor intermittent low voltage.
This car has on board diagnostic capabilities which is what AllDATA recommends doing first.

Posted on Apr 24, 2009

badealer888
  • 414 Answers

SOURCE: Engine Not Responding/ Not getting power

Could be the other coil pack. Be sure to check and clear all codes stored.

Posted on Jul 08, 2009

Testimonial: "I forgot to post back! New coils were purchased and I personally replaced them. The car ran 100% better than before! Thanks fer the help!!!!"

honeymokey
  • 3113 Answers

SOURCE: 3.3 engine,,, 1990 oldsmobile cutlass ciera

replace crank sensor. It gets hot and stops working.

Posted on Aug 12, 2009

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2 Answers

Why do i have to hold the petal to floor to get truck to start?


Could be a dirty egr valve exhaust gas recerlater. I had a problem where my car wouldn't start or stay running unless I had gas pedal mashed to floor and it was that problem

Mar 31, 2015 | Cars & Trucks

1 Answer

1993 f350 460 cid wont start unless you press gas pedal to the floor


my truck starts right up if I hold the petal to the floor but wont start if I don't hold petal to floor

Feb 12, 2013 | 1993 Ford F350

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97 satur sl will not remain running unless gass petal is held for at least the first 15-20 min then runs fine/////


The cold start valve needs to be replaced. It is not letting the engine warm up properly.

Jan 20, 2013 | Saturn SL Cars & Trucks

2 Answers

I have to pump the throttle several times and then it starts sometimes and sounds like backfireing allthough its feul injected!


'pumping' a fuel injected engine is NOT like the old days (like with a carb)-if you hold the petal to the floor, it shuts off the injectors-NO petal, the injectors pulse (and dump fuel to an engine that is slow to start). If you are having hard starting, chances are good you have a flooding condition-leaking injectors, leaking O-rings, a damaged fuel pressure regulator could all be re3asons for your hard starting (and backfiring from a flooded engine). You should try to HOLD the petal to the floor and see if that helps-if it does, you should get the fuel regulator checked, replace the injector o-rings, check fuel pressure and might even need to consider replacing injectors themselves (or having them cleaned).

Sep 05, 2011 | 1994 Pontiac Grand Am

1 Answer

I have a 1999 Saturn 4 cyl. The engine idles around 1200rpm. Even during normal driving the engine still idles high even after warm up. Sometimes the engine won't start after it has sat for 15 minutes or...


leaking o-rings at the fuel injectors would explain the hard starting when warm-when you hold the petal to the floor, it shuts off the injectors, which will make it possible to start it after the injectors leak down on shutdown. O-rings are easy to replace, just disconnect the battery and pull the injectors straight up to remove, get the old rings out and install the new ones, light lubricate the base of the injectors and pop them back in.

that might explain the high idle too, although usually the idle is not consistent when the injectors are leaking at idle-idle is rough. I would make sure the engine coolant temperature sensor is new (they are very important on saturn, the original one is plastic and they are known to crack easily-the replacement should be brass)-also, check the Idle air controller, best to remove the throttle body (4 bolts) and remove the IAC and clean it thoroughly, being careful not to get the top half wet-sensitive electronics. Clean the post that the IAC goes into, and clean the throttle body (both sides) while you have it out.

Feb 21, 2011 | 1999 Saturn SL

1 Answer

My 1994 Acura Integra engine is flooded and it won't start n this only happens when it gets too cold so how do I get it to start


Try holding the gas pedal down to the floor. Do not pump it, just hold it down and crank the engine.
Don't burn out the starter, but don't release the gas pedal, between cranks. That should flush out the excess gas and hopefully the engine will catch in the process, when the mixture is just right.
No guarantees for this one..

Dec 26, 2010 | 1994 Acura Integra

1 Answer

Fading brake pedal when engine running , have replace front pads, master cylinder and bleed entire system, pedal is firm with engine off but once started pedal fades to floor


Hold pedal down firmly with vehicle not running. Now start it up still holding pedal down firmly. Does it go to the floor when engine is started? If so I would look at the brake booster. It may be defective.

Nov 21, 2009 | 1991 Nissan Pathfinder

2 Answers

Changed front brake pads. brake pedal goes to floor. no brakes


Something doesn't sound right, you shouldn't have to remove the brake line to install pads. Did you have to do this on both sides? Do the new pads and the old pads look the same? Did you get the caliper on crooked? Just recheck your work first before replacing more parts. When you install the caliper, You have to hook the pad on one side first before you slide it over the rotor.

Mar 26, 2009 | 2000 Jeep Grand Cherokee

1 Answer

2004 Dodge Ram 1500 5.7 Hemi Quad won't start in morning


could be that the electronic throttle could be icing up. just remove the air cleaner and have someone cycle the key. the throttlebody will cycle prior to starting to do a self check. chrysler has a tsb out for this concern. tsb # 14-002-05

Jan 05, 2009 | 2004 Dodge Ram 1500

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