Help please

Tiny
98RANGERXLT
  • MECHANIC
  • FORD F-150
Hello I have a 1997 ford f-150 with 4.6 v8 and an automatic I am having some problems, when the engine is warm it misses really bad as low as 200 rpm and I lose the brake booster if anybody can help that would be great otherwise I am stuck at school I tied changing the fuel filter and the egr valve but couldnt
Thursday, October 25th, 2007 AT 4:09 PM

5 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check engine light is it On?

When was the last tune-up? Charging system is it okay-if there's a problem with system voltage the parameters and actuators will no function correctly to include the computer.

Try the idle air control valve open it up and clean it, brake booster could be leaking or vacuum hose. MAF/ IAT/TPS sensors
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Thursday, October 25th, 2007 AT 4:31 PM
Tiny
98RANGERXLT
  • MECHANIC
  • 301 POSTS
Check engine light was on but I cleared the codes the last tune up was like 15 thousand miles ago the brake booster isnt leaking it just started doing it when the engine was missing bad
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Thursday, October 25th, 2007 AT 4:34 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What was the last code you seen and relates to what?

Scan it again maybe something else might pop up. And do your basic's.
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Thursday, October 25th, 2007 AT 9:04 PM
Tiny
98RANGERXLT
  • MECHANIC
  • 301 POSTS
I founbd it last night I knocked the brake booster vac line off the engine my dad put it on and now it runs fine
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Friday, October 26th, 2007 AT 4:04 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
I gave you the brake hose 2 days, what happened?
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Friday, October 26th, 2007 AT 8:07 PM

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