power problem HELP! - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Probe Forum | Mazda MX6 Forum Forum for discussion of the Ford Probe and Mazda MX6.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 30 (permalink) Old 06-04-12, 08:02 AM Thread Starter
Registered User
 
Join Date: Jun 2012
Posts: 13
power problem HELP!

Hi, 1995 high mileage Probe with major power problems that the mechanics can't figure out.

Climbing a hill or coming over a bridge or up out of a tunnel, the car can't go more than 15 MPH. There's only about two inches word of power increase on the gas pedal. Pushing it any further not only doesn't add any power, it confuses the car and shuts the power off. Basically you can only apply the least amount of gas on the pedal.

Mechanics have elimated the tranny, the fuel pump, the air filter, and the catalytic converter -- all are functioning. Last Saturday my mechanic called me and said he just spent 3-1/2 hours, and hasn't the faintest idea why my car has negligible power.

Any ideas! HELP! I'm desperate.

Thank you.

geraldrm is offline  
Sponsored Links
Advertisement
 
post #2 of 30 (permalink) Old 06-04-12, 08:13 AM
Moderators
 
R.S.LOGAN's Avatar
 
Join Date: Apr 2007
Location: Scotland
Posts: 14,316
Re: power problem HELP!

Fuel filter ?
R.S.LOGAN is offline  
post #3 of 30 (permalink) Old 06-04-12, 08:31 AM Thread Starter
Registered User
 
Join Date: Jun 2012
Posts: 13
Re: power problem HELP!

Thanks for replying, Mr. Logan, but I stupidly wrote "air filter" for "fuel filter". They did check the fuel filter already, and it's not clogged.

Some things people have suggested are: fuel regulator; emission valves; torque converter.

Of course, it could easily be something altogether different.
geraldrm is offline  
post #4 of 30 (permalink) Old 06-04-12, 08:34 AM
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 10,298
Re: power problem HELP!

What engine is it? Maybe jumped time if the belt is old.

Bert
Bert is offline  
post #5 of 30 (permalink) Old 06-04-12, 08:58 AM Thread Starter
Registered User
 
Join Date: Jun 2012
Posts: 13
power problem HELP!

Did you mean the timing belt? It was replaced last year.

It seems to me that a key clue is that not only is there little power, but that the power does not increase with increased pressure on the gas pedal -- on the contrary, the power stops feeding altogether. That is, it runs normally to about two inches of depressing the gas pedal, and then anything past that point does not exist.
geraldrm is offline  
post #6 of 30 (permalink) Old 06-04-12, 09:06 AM
Moderators
 
R.S.LOGAN's Avatar
 
Join Date: Apr 2007
Location: Scotland
Posts: 14,316
Re: power problem HELP!

Checked all vac hose/pipes for leaks or cracking ? Also , as Bert suggested , worth checking timing . If belt jumped , for whatever reason , could be badly retarded / over advanced which would give you those symptoms .
R.S.LOGAN is offline  
post #7 of 30 (permalink) Old 06-04-12, 09:59 AM
Moderators
 
R.S.LOGAN's Avatar
 
Join Date: Apr 2007
Location: Scotland
Posts: 14,316
Re: power problem HELP!

Could also check MAF sensor and TPS .
R.S.LOGAN is offline  
post #8 of 30 (permalink) Old 06-04-12, 10:07 AM Thread Starter
Registered User
 
Join Date: Jun 2012
Posts: 13
power problem HELP!

"MAF Sensor" and "TPS" ? Sorry, I'm not an expert like you guys, what do those terms mean?
geraldrm is offline  
post #10 of 30 (permalink) Old 06-04-12, 01:59 PM
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 10,298
Re: power problem HELP!

Another thing that can cause that is a plugged exhaust.

Bert
Bert is offline  
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Probe Forum | Mazda MX6 Forum
Gear in this thread - Powered by O'Reilly Auto Parts


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome