an exhaust shield on a pickup truck ... what ? ? Whats it gonna heat up .... the 12 pack of Bud in the back maybe ?

The muffler shop thinks it will run cooler .... since the flow will be alot better .... less restriction .... less heat ....

 

I occationally carry several thousand dollars worth of electronic gear (musical keyboards, mixers, amps etc.). If it were just Bud or in my case Newcastle Ale it wouldn't be a concern.

 

The mechanic who was to perform did the OBD 1 code read could not get my EEC IV to interface with his scanner. This is the only test I asked him to do. Instead of calling me and telling me the situation, he replaces the MAP sensor and disconnects the vacuum line to the FPR. I get told for $245.00 that the truck runs better but they need more time to get it 100%. I said thanks but no thanks.

I picked up the truck off hours on Saturday and looked at the engine compartment prior to leaving to see that everything was OK. I find the new MAP sensor flopped over the wires - not mounted to the firewall. My old MAP was still on the bracket. Also he had capped the plenum outlet to the FPR and left the vacuum line unplugged.

I removed the new MAP, reconnected to the old one, pulled the cap and reconnected the vacuum line to the FPR. The bill said $75.00 for 1 hour labor and $155.00 for the new MAP sensor! You can get one at Advance Auto for $55.00 and a mechanically minded 13 year old could replace that sensor with ease.

On Monday I'm giving the garage back the new MAP and rubber cap plus a check for $75.00 plus tax. Non of this shoddy work was needed. All I asked for was the OBD 1 scanner test results.

Wow, really ups my confidence in some mechanics.

I'm going to do a leak down test as suggested by some on this forum. Hopefully that will pinpoint the 15 to 16 inch vacuum readings I get. Otherwise the only thing I can think of is a bad computer and even that would not explain the low vacuum reading at idle.